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Hafnium Diboride HfB2 Powder CAS 12007-23-7

Item No.: Tr-HfB2 Hafnium boride, gray with metallic luster crystals. The melting point is 3250 degrees Celsius, the conductivity is large, and the chemical properties are stable.Purity>99.5%Particle Size: 3 um

Overview of Hafnium Boride

Hafnium boride is a gray crystal with a metallic luster. It has high electrical conductivity and stable chemical properties. It hardly reacts with all chemical reagents (except hydrofluoric acid) at room temperature. It is produced by mixing and heating hafnium dioxide, boron oxide or boron carbide with carbon powder, or by hydrogen reduction of hafnium tetrachloride and boron trichloride at 2000°C or direct reaction between hafnium and boron. It is used as a high temperature lloy.

HB2 powder has a high melting point, hardness, electrical and thermal conductivity, and neutron absorption performance. It has important applications in ultra-high tmperature, superhard, electrode, and neutron absorption materials.

With the development of material technology, the application fields of hafnium diboride ceramics and composite materials are becoming more and more extensive. Obtaining low-cost, high-quality hafnium diboride powder is currently an important research and development direction at home and abroad. Hafnium diboride is difficult to sinter. Obtaining an ultrafine powder is necessary to improve the sintering performance. Although nano-powder has superior performance, its cost is high, and it is difficult to disperse during raw material processing, and the process is more difficult. Therefore, more and more attention has been paid to developing sub-micron hafnium diboride powder.

Hafnium diboride belongs to the Ultra-high-temperature ceramics class, a ceramic type composed of hafnium and boron. It has a melting temperature of about 3250 °C. It is an unusual ceramic, having relatively high thermal and electrical conductivities, properties it shares with isostructural titanium diboride and zirconium diboride. It is a grey, metallic-looking material. Hafnium diboride has a hexagonal crystal structure, a molar mass of 200.11 grams per mole, and a ~10.5 g/cm³ density.

Hafnium diboride is often combined with carbon, boron, silicon, silicon carbide, and nickel to improve the consolidation of the hafnium diboride powder (sintering). It is commonly formed into a solid by hot pressing, where the powders are pressed together using heat and pressure. Feel free to inquire about the latest price if you would like to buy Hafnium Diboride HfB2 Powder in bulk.

Specifications of Hafnium Boride

Hafnium diboride powder MF: HfB2

Hafnium diboride powder CAS: 12007-23-7

Hafnium diboride powder EINECS: 234-500-7

Hafnium diboride powder Density: 10.5 g/cm3

Hafnium diboride powder Melting point: ~3250 °C

Hafnium diboride powder MOQ: 1kg

Hafnium diboride powder Particle size: nano, micro and as customers' request

Hafnium diboride powder Package: Aluminum bag, vacuum packing, 1kg/bag, or as requested.

Features of Hafnium Boride

Hafnium diboride is an ultrahigh-temperature ceramic composed of hafnium and boron. It has a melting temperature of about 3250 degrees Celsius. It is an unusual ceramic, having relatively high thermal and electrical conductivities, properties it shares with isostructural titanium diboride and zirconium diboride. It is a grey, metallic-looking material. Hafnium diboride has a hexagonal crystal structure, a molar mass of 200.11 grams per mole, and a density of 10.5 grams per cubic centimeter.

How is Hafnium Boride Produced?

The combustion synthesis method of high-purity hafnium diboride powder is realized according to the following steps:

1. Mix the basic raw materials and diluents. The basic raw materials include hafnium dioxide, boric anhydride and magnesium powder. The percentages by weight are hafnium dioxide: 30% to 60%, boric anhydride: 10% to 40%, magnesium powder：15%～50%, the weight of the added diluent hafnium diboride is 0～3 times the basic raw material;

2. Drying and mixing;

3. Load the uniformly mixed raw material powder into a graphite boat and put it into a closed pressure vessel. The closed pressure vessel is cooled by circulating water, and the reaction is maintained under a protective atmosphere with a pressure of 0-5Mpa or under vacuum conditions. The raw materials are self-propagating combustion and transformed into products;

4. Take out the product after cooling. The product is a mixture of hafnium diboride and magnesium oxide. The magnesium oxide is removed by acid washing, and then the hafnium diboride is washed with water, filtered and dried to obtain hafnium diboride powder.

Application of Hafnium Boride

Hafnium diboride is used in wear-resistant coatings. Due to its excellent refractoriness, it has also been looked at for use in ultra-high-temperature composites in conjunction with silicon carbide (SiC). The addition of silicon carbide improves its oxidation resistance.

The oxidation resistance of hafnium diboride is dependent on the temperature and pressure. A protective oxide scale of hafnia forms at a temperature of 1500 °C and 1 atm of pressure. When temperatures rise above 1600 °C and pressures drop below 1 atm, the oxidation resistance of HfB2 is dramatically reduced. Under these conditions, the boiling temperature of B2O3 (one of the oxidation products of HfB2) and the protective oxide layer are exceeded.

Due to its strength and thermal properties, the material can be used in hypervelocity reentry vehicles such as ICBM heat shields or aerodynamic leading edges. Unlike polymer and composite materials, HfB2 can be formed into aerodynamic shapes that will not ablate during reentry.

Hafnium diboride is also investigated as a new material for nuclear reactor control rods.

Hafnium diboride is also being investigated as a microchip diffusion barrier. If synthesized correctly, the barrier can be less than 7 nm thick.

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Company Profile

Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

The company has professional technical and quality supervision departments, a well-equipped laboratory with advanced testing equipment, and an after-sales customer service center.

If you are looking for high-quality Hafnium Boride, please feel free to contact us or click on the needed products to send an inquiry.

Storage Condition of Hafnium Boride

The damp reunion will affect HfB2 powder dispersion performance and using effects. Therefore, hafnium diboride HfB2 powder should be sealed in vacuum packing and stored in a cool and dry room; the hafnium diboride HfB2 powder can not be exposed to air. In addition, the HfB2 powder should be avoided under stress.

Packing&Shipment of Hafnium Boride

We have many kinds of packing, depending on the hafnium diboride HfB2 powder quantity.

Hafnium diboride HfB2 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as requested.

Hafnium diboride HfB2 powder shipping: Could it be shipped out by sea, by air, or by express as soon as possible once the payment receipt is received?

Payment Methods of Hafnium Boride

L/C, T/T, Western Union, Paypal, Credit Card etc.

FAQ

What is hafnium diboride?

Hafnium diboride (HfB2) is a grey-black crystal with a metallic lustre. Its crystal structure belongs to the hexagonal crystal system. Hafnium diboride (HfB2) is an excellent high-temperature ceramic material with a high melting point (3380°C).

What are the characteristics of hafnium diboride?

Hafnium diboride (HfB2) has a high melting point, high thermal conductivity, oxidation resistance and other high-temperature comprehensive performance of new ceramic materials, mainly used in ultra-high-temperature ceramics, high-speed aircraft nose cones and aviation, aerospace and other fields.

Is hafnium diboride stable?

Hafnium diboride does not decompose when used and stored by its specifications. At room temperature, it does not react with concentrated sulfuric acid, potassium sulfate, and phosphoric acid, but it reacts with concentrated hydrochloric acid and concentrated nitric acid.

What are the main uses of hafnium diboride?

Hafnium diboride is mainly used in high-temperature ceramics, high-speed aircraft nose cones, aviation, aerospace, and other fields. A high-temperature ceramics is a very promising candidate material, often used in high-temperature oxidative environments in ablation-resistant materials, at the same time, it has a high hardness, high modulus, high thermal conductivity and high electrical conductivity characteristics.

Is hafnium diboride harmful?

It can cause skin irritation and severe eye irritation. It can also cause respiratory irritation. So you need to wear protective gloves/protective clothing/eye protection/protective mask when using it. And avoid breathing dust/fume/gas/mist/vapour spray. Use only outdoors or in a well-ventilated area. Wash thoroughly after use.

Hafnium Diboride Properties
Other Names	hafnium boride, HfB2 powder
CAS No.	12007-23-7
Compound Formula	HfB2
Molecular Weight	200.112
Appearance	Black Powder
Melting Point	3250 °C
Boiling Point	N/A
Density	10.5 g/cm3
Solubility in H2O	N/A
Exact Mass	201.965161


Hafnium Diboride Health & Safety Information
Signal Word	N/A
Hazard Statements	N/A
Hazard Codes	N/A
Risk Codes	N/A
Safety Statements	N/A
Transport Information	N/A

The Difference in Production Methods Between Green Silicon Carbide and Black Silicon Carbide

Silicon carbide (SiC) is an important inorganic non-metallic material with high hardness, wear resistance, and high-temperature resistance, making it widely used in many fields. Silicon carbide can be divided into green silicon carbide and black silicon carbide based on color. The production method of green silicon carbide is the same as that of black SiC, but the requirements for raw materials are different. The crystalline form of green silicon carbide obtained through smelting has high purity and hardness.The production method of green silicon carbideThe production method of green silicon carbide mainly includes raw material preparation, crushing, batching, forming, sintering, etc.Raw material preparation: The main raw materials for green silicon carbide are petroleum coke and quartz sand. Petroleum coke requires high fixed carbon content, low sulfur content, low ash content, and low volatile content, while quartz sand requires high SiO2 and low impurity content.Crushing and batching: Crush and mix petroleum coke and quartz sand in proportion, and then feed the mixed raw materials into the molding machine through batching equipment.Forming: In the molding machine, raw materials are pressed into green billets with a certain shape and size.Sintering: Put the green body into a high-temperature furnace so that the carbon in the green body reacts with SiO2 in quartz sand to generate SiC, thereby obtaining green silicon carbide products.The production method of black silicon carbideThe production method of black silicon carbide also includes steps such as raw material preparation, crushing, batching, forming, sintering, etc. However, its raw materials and process parameters are different compared to green silicon carbide.Raw material preparation: the main raw materials of black silicon carbide are coal tar oil coke and quartz sand, of which coal tar oil coke requires high fixed carbon content, low sulfur content, low ash content, and moderate volatile content, while quartz sand requires the same requirements as green silicon carbide.Crushing and batching: Coal tar, oil coke, and quartz sand are crushed and mixed in a certain proportion, and then the mixed raw materials are fed into the molding machine through batching equipment.Forming: In the molding machine, raw materials are pressed into green billets with a certain shape and size.Sintering: Put the green body into a high-temperature furnace so that the carbon in the green body reacts with SiO2 in quartz sand to generate SiC, thereby obtaining black silicon carbide products.It should be noted that during the sintering process, black silicon carbide's sintering temperature is higher than green silicon carbide's, and longer insulation time is required to achieve higher density and performance.About RBOSCHCORBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials. The company export to many countries, such as USA, Canada, Europe, UAE, South Africa, Tanzania,Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for SiC powder, please send an email to: sales1@rboschco.com

Mar 04

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Application of Zinc Stearate Emulsion

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Feb 20

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The Application of Tantalum Carbide in the Field of Ceramics

Tantalum carbide (TaC) is a compound material which has good physical and chemical properties, which has a wide ranges of applications in many fields. 1.The properties of tantalum carbideTantalum carbide is a compound with a high melting point, hardness, and good thermal and chemical stability. Its crystal structure is a face-centered cubic lattice, with each tantalum atom forming four covalent bonds with carbon atoms and each carbon atom forming three covalent bonds with three tantalum atoms, forming a stable crystal structure. The melting point of tantalum carbide is as high as 3880 ℃, and its hardness is second only to diamond and boron carbide. It has good wear resistance and corrosion resistance. In addition, tantalum carbide also has good thermal and chemical stability, which can work stably in high temperatures and strong corrosive environments.2. Preparation method of tantalum carbideThere are various methods for preparing tantalum carbide; the most commonly used is the carbon thermal reduction method. This method involves mixing tantalum powder and carbon powder at high temperatures, heating them in an atmosphere, reducing them to high temperatures, and reacting the carbon powder with tantalum powder to generate tantalum carbide. Another commonly used method is chemical vapor deposition, which involves introducing tantalum and carbon-containing gases into a reactor at a certain temperature to generate tantalum carbide through a chemical reaction. In addition, there are also preparation methods such as arc melting and sputtering.3. The application of tantalum carbideAs a high-performance material, Tantalum carbide has a wide range of applications in many fields. Firstly, TaC is mainly used in high-temperature resistant materials such as furnace tubes, crucibles, and ceramic cutting tools due to its high melting point and good thermal stability. Secondly, due to its high hardness and good wear resistance, tantalum carbide is applied in abrasives, grinding, and cutting tools. In addition, due to its excellent chemical stability and corrosion resistance, tantalum carbide is used in equipment and components in highly corrosive environments, such as chemical reactors, high-pressure vessels, and nuclear reactors.About RBOSCHCORBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials. The company export to many countries, such as USA, Canada, Europe, UAE, South Africa, Tanzania,Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for tantalum carbide powder, please send an email to: sales1@rboschco.com

Feb 19

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The Application of Scandium Oxide in the Field of Ceramics

This element has many applications, especially in ceramics, glass, electronics, and aerospace. The chemical properties of scandium oxideScandium oxide is a white solid powder with high melting and boiling points. It is stable at room temperature and is not easily reactive with oxygen in the air. Regarding chemical properties, scandium oxide has strong oxidizing and acidic properties and can react with many elements and compounds. In addition, scandium oxide can also form various complexes, which play important roles in many chemical reactions.Preparation method of scandium oxideThere are two main methods for preparing scandium oxide: the aluminum thermal reduction method and the carbon thermal reduction method. The aluminum thermal reduction method uses aluminum as a reducing agent, mixes scandium dioxide with aluminum powder, heats it to a high temperature, and reduces scandium dioxide to scandium oxide through the thermal reduction effect of aluminum. The C thermal reduction way uses carbon as a reducing agent, mix scandium oxide with carbon and heats it to high temperature. Through the thermal reduction effect of carbon, scandium dioxide is reduced to scandium oxide. Both methods can achieve high yields and purity.The application of scandium oxideScandium oxide has broad application value, mainly manifested in the following aspects:Application in the field of ceramics: Scandium oxide used as prepare high-performance ceramic materials, such as high alumina ceramics containing scandium oxide and silicon nitride ceramics containing scandium oxide. These ceramic materials have excellent mechanical properties, chemical stability, and high-temperature performance and are widely used in aerospace, energy, and chemical engineering fields.Used in the glass field: These glasses have excellent optical and fluorescence properties and are widely used in optical instruments, displays, lighting and other fields.Electronic materials: Scandium oxide is widely used in preparing electronic materials due to its excellent electrical properties. It can be an insulation layer for electronic devices, improving their insulation performance and stability. In addition, scandium oxide can also be used to prepare electronic ceramic materials, such as capacitors and sensors, to improve their performance and stability.Laser and TV electron gun: Scandium oxide can also be used to manufacture variable wavelength solid-state lasers and TV electron guns.About RBOSCHCORBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials. The company export to many countries, such as USA, Canada, Europe, UAE, South Africa, Tanzania,Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for Sc2O3 powder, please send an email to: sales1@rboschco.com

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The Properties and Main Application Areas of Potassium Silicate

Potassium silicate (chemical formula: K2SiO3) is an inorganic compound known as potassium water glass or potassium sodium silicate, a common silicate. Potassium silicate is a colorless or slightly yellow solid with high adhesion and fire resistance, widely used in fields such as construction, textiles, papermaking, ceramics, paint, medicine, etc.1. Preparation of potassium silicatePotassium silicate can be prepared by different methods, with the most commonly used method being the reaction of alkali metal silicates with hydroxides or alkali metal oxides at high temperatures. Specifically, sand, potassium hydroxide, or potassium carbonate are mixed and stirred evenly, heated to high temperature and reacted to obtain potassium silicate. Another preparation method is directly reacting silicon powder with potassium hydroxide to generate potassium silicate and hydrogen gas.2. The properties of potassium silicatePotassium silicate is an inorganic salt with a high melting and boiling point, insoluble in water but easily soluble in alkaline solution. The aqueous potassium silicate solution is alkaline, has strong adhesion and fire resistance, and can form a strong protective film. In addition, potassium silicate also has high thermal stability and weather resistance, which can maintain stability at higher temperatures and humidity.3. The application of potassium silicateConstruction industry: Potassium silicate can be used to manufacture building materials such as concrete, cement, and ceramic tiles, improving the durability and strength of the materials.Textile industry: Potassium silicate can be used as a sizing agent, finishing agent, and softener for textiles, improving their wear resistance, wrinkle resistance, and hand feel.Paper industry: Potassium silicate can be used as a coating and reinforcing agent for paper, improving the printing effect and strength of the paper.Ceramic industry: Potassium silicate can be used to prepare and process ceramics, improving the hardness and heat resistance of ceramic products.Paint industry: Potassium silicate can be used as an additive in paint to improve its adhesion and weather resistance.Pharmaceutical industry: Potassium silicate can be used for the Preparation and processing of drugs, such as in the Preparation of drug sustained-release agents and drug carriers.Other fields: Potassium silicate can also be used in electroplating, glass, coatings, and other fields. In electroplating, the corrosion resistance of the electroplating layer can be improved; In the glass, the transparency and hardness of glass can be improved; In coatings, adhesion, and weather resistance can be improved.4. Notes on potassium silicateStorage: Potassium silicate should be stored in a dry, cool, and ventilated warehouse, away from sources of fire and heat. During transportation, it is necessary to prevent rain and moisture.Usage: Potassium silicate has strong alkalinity and can irritate the skin and eyes. Protective glasses and gloves must be worn to avoid direct contact with the skin. In addition, potassium silicate aqueous solution is prone to moisture absorption, and contact with water vapor should be avoided during use.Environmental protection: The production and use of potassium silicate can generate pollutants such as wastewater and exhaust gas, which have a certain impact on the environment. Therefore, effective environmental protection measures should be taken during production and use to reduce environmental pollution.About RBOSCHCOKMPASS is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials. The company export to many countries, such as USA, Canada, Europe, UAE, South Africa, Tanzania,Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for Potassium silicate powder, please send an email to: sales1@rboschco.com

Jan 10

2024

The Application of Silicon Nitride in the Field of New Energy Vehicles

Silicon nitride is an important inorganic non-metallic material with excellent physical and chemical properties, exhibiting excellent performance at high temperatures, wear resistance, corrosion resistance, and other aspects. 1. The properties of silicon nitrideSilicon nitride powder (Si3N4) is a ceramic material with a hexagonal crystal structure similar to silicon carbide (SiC). Silicon nitride has a high hardness, second only to diamond and silicon carbide, and has excellent wear and high-temperature resistance. In addition, silicon nitride also has good chemical stability and can maintain stable performance in high-temperature and corrosive environments.2. Preparation method of silicon nitrideThere are various methods for preparing silicon nitride, among which the most commonly used are reaction sintering and hot pressing sintering. The reaction sintering method uses silicon powder and nitrogen at high temperatures to generate silicon nitride. The advantages of this method are low cost, simple process, but low product purity. The hot pressing sintering method prepares silicon nitride ceramics by sintering the raw material powder at high temperatures and high pressures. The advantages of this method are high product purity and excellent performance, but the process is complex, and the cost is high.3. Application fields of silicon nitrideMechanical seal: Silicon nitride is one of the important materials in the field of mechanical seals as to its high hardness, wear resistance, and high-temperature resistance. It can be used as a material for sealing rings, gaskets, bearings and other components, with a long service life and good sealing performance.Automotive industry: Silicon nitride ceramic materials have excellent high-temperature and corrosion resistance and can be used to make automotive engine components, such as turbochargers, gas cylinders, etc. by the way, silicon nitride can also be used to make automotive brake and clutch pads with high wear and temperature resistance.Silicon nitride has broad application prospects in the field of new energy, mainly manifested in the following aspects:Solar energy field: Silicon nitride can be used as a support structure for solar panels, with high strength, high heat resistance, good insulation performance and stability. It can withstand the ultraviolet and thermal radiation of sunlight, ensuring the long-term stable operation of solar panels. In addition, silicon nitride powder can be used as a packaging material for electronic components of solar inverters, improving their reliability and stability.In fuel cells, silicon nitride can serve as a supporting structure for fuel cells, with good corrosion resistance and high-temperature stability. In fuel cells, silicon nitride can withstand high current density and high-temperature environments, ensuring the long-term stable operation of fuel cells.Wind energy field: Silicon nitride can manufacture components such as bearings and seals in wind turbines with high wear and corrosion resistance. It can withstand harsh environmental conditions and significant mechanical stress, ensuring the long-term reliable operation of wind turbines.In the field of new energy vehicles, silicon nitride can be used as a component material for new energy vehicles, such as engine components, motor support structures, etc. Due to its high strength, high heat resistance, good insulation performance and stability, it can increase safety and reliability of the new energy vehicles.Aerospace: Silicon nitride ceramic materials have excellent mechanical properties and high-temperature stability and can be used to make aircraft and rocket engine components, such as combustion chambers, nozzles, etc. In addition, silicon nitride powder can also be used to produce thermal protection materials for spacecraft and satellite solar panels.Electronic industry: Silicon nitride ceramic materials have good insulation and stability properties and can be used to make electronic components and integrated circuit packaging materials. In addition, silicon nitride powder can be used to make supporting structures and heat sinks for electronic devices.Medical field: Silicon nitride ceramic materials have good biocompatibility and stability and can be used to make medical devices such as artificial joints and dental materials. In addition, silicon nitride powder can be used to make structural components and support structures for medical devices.Other fields: In addition to the above fields, silicon nitride ceramic materials powder can be used in the petrochemical industry, shipbuilding, sports equipment and other fields. For example, silicon nitride can make components like oil pipelines and valves. And to make high-end sports equipment such as table tennis rackets and badminton rackets.About RBOSCHCOKMPASS is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials. The company export to many countries, such as USA, Canada, Europe, UAE, South Africa, Tanzania,Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for Si3N4 powder, please send an email to: sales1@rboschco.com

Jan 03

2024

The Application of Manganese Dioxide in Batteries

Manganese dioxide is a common inorganic compound with multiple uses. Manganese dioxide is widely used in the chemical industry to prepare various manganese salts, catalysts, batteries, and other electronic chemicals.1. PreparationManganese dioxide can be prepared through various methods, among which the most common is the chemical reaction method. This method uses manganese salts as raw materials and generates manganese dioxide through oxidation or electrolysis reactions. The specific preparation process is as follows:Weigh a certain amount of manganese salt solution, such as manganese sulfate or manganese chloride;Add an appropriate amount of oxidant, such as nitric acid, hydrogen peroxide, or potassium permanganate, to the solution;React at a certain temperature and pressure to generate manganese dioxide precipitate;Filter, wash, and dry the residue;High-temperature calcination of manganese dioxide is carried out to obtain high-purity manganese dioxide.2. PropertyPhysical properties: Manganese dioxide is a black solid powder with a face-centered cubic crystal structure. Under standard conditions, the density is 5.02g/cm ³。Chemical properties: Manganese dioxide has high oxidizing and reducing properties. Under acidic conditions, manganese dioxide can react with hydrogen ions to generate manganese ions and water. Under alkaline conditions, manganese dioxide can react with hydroxide ions to produce manganese hydroxide and water. In addition, manganese dioxide can also react with some reducing substances, such as hydrogen gas, carbon monoxide, etc.3. ApplicationManganese dioxide is widely used in multiple fields as to its unique physical and chemical properties. The following are its main application areas:Battery material: Manganese dioxide is widely used as a battery material due to its excellent electrochemical performance. In dry batteries, manganese dioxide can generate stable voltage and current when used together with carbon rods as a positive electrode material. In addition, manganese dioxide is also used to prepare positive electrode materials for rechargeable batteries, such as lithium manganese dioxide in lithium-ion batteries.Catalyst: Manganese dioxide can catalyze various reactions, such as the oxidation of alcohols, hydrocarbons, and carbon monoxide. Manganese dioxide catalysts have the advantages of high activity, good stability, and low cost and are, therefore, widely used in industry.Pigments and coatings: Manganese dioxide can be made into black pigments and coatings, widely used in fields such as architecture, furniture, and automobiles. Various colors and textures can be prepared to meet different needs when mixed with other pigments.Other fields: Besides the abovementioned application, manganese dioxide can prepare magnetic materials, electronic components, etc. With the continuous development of technology, its application prospects will be even broader.About RBOSCHCORBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials. The company export to many countries, such as USA, Canada, Europe, UAE, South Africa, Tanzania,Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for MnO2 powder, please send an email to: sales1@rboschco.com

Dec 27

2023

The Application of Tungsten Disulfide in the Field of Lubrication

Tungsten disulfide is a chemical substance with significant application value.1. Properties of tungsten disulfideTungsten disulfide is a black-gray solid with the molecular formula WS2. It has metallic luster, semiconductor properties, and high chemical and thermal stability. The molecular structure of tungsten disulfide consists of two sulfur atoms and a large radius tungsten atom, where a six-membered ring is formed between the sulfur atoms, and the tungsten atom is located at the center of the ring. This unique structure gives tungsten disulfide high electron mobility and conductivity.2. Preparation of tungsten disulfideThe preparation methods of tungsten disulfide mainly include chemical vapor deposition (CVD) and high-temperature synthesis. CVD is the most commonly used preparation method, which generates tungsten disulfide thin films by reacting gases containing tungsten and sulfur at high temperatures. The high-temperature synthesis rule is to heat a mixture of tungsten and sulfur powder under high temperature and pressure conditions to generate tungsten disulfide crystals.3. Application of tungsten disulfideIn the field of electronic devicesTungsten disulfide is widely used in electronic devices due to its semiconductor properties and high electron mobility. It can be used as an electrode material for electronic components, such as the gate material for field-effect transistors (FETs) and the electrode material for solar cells. In addition, tungsten disulfide can also be used as a storage medium for electronic memory materials, such as phase change memory (PCRAM).Lubrication fieldTungsten disulfide has excellent lubricating properties and can be used as an additive in lubricants and greases. Under high temperature and high load conditions, tungsten disulfide can form a dense protective film, reduce friction and wear, and improve equipment's operational efficiency and lifespan.Catalyst fieldTungsten disulfide can be used as a catalyst and catalyst carrier and is widely used in petrochemicals and environmental protection fields. In petrochemicals, tungsten disulfide can serve as a catalyst to improve the efficiency and yield of petroleum cracking. Tungsten disulfide can be a catalyst for treating waste gas and wastewater in environmental protection.Material coating fieldTungsten disulfide is widely used in material coatings due to its good hardness, wear resistance, and excellent corrosion resistance. It can be used as a coating material for metal surface protection, wear resistance, and reduction. For example, mechanical equipment used in marine environments can be protected with tungsten disulfide coatings.Tungsten disulfide has a wide range of applications, including lubrication, catalysts, and material coatings mentioned above, as well as the following:Catalyst carrier: Tungsten disulfide has high hardness, wear resistance, and excellent corrosion resistance and can be used as a catalyst carrier in fields such as petrochemicals and environmental protection.Electronic materials: Tungsten disulfide has excellent electronic conductivity and stability and can be used to prepare electrode materials, electronic devices, and semiconductor materials.Aerosol: Tungsten disulfide is often used as an ultrafine scale crystal for aerosols, which has the advantages of simple preparation process equipment, no environmental pollution, and safe and reliable operation.Lubrication of mechanical components: Tungsten disulfide can be used as a forging and stamping lubricant in combination with other materials, which can extend the service life of molds and improve product smoothness.Self-lubricating components: Tungsten disulfide can be used as a filling material in combination with polytetrafluoroethylene and nylon to make self-lubricating components.About RBOSCHCORBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials. The company export to many countries, such as USA, Canada, Europe, UAE, South Africa, Tanzania,Kenya,Egypt,Nigeria,Cameroon,Uganda,Turkey,Mexico,Azerbaijan,Belgium,Cyprus,Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia,Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are looking for WS2 powder, please send an email to: sales1@rboschco.com

Dec 20

2023

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