Knowledge about nano materials | Rboschco


  • Calcium nitride is an inorganic compound with the chemical formula Ca3N2. It is a solid red-brown crystalline solid made up of calcium and nitrogen. It can be used in the fabrication of ceramics and crucibles.

    It is a reducing agent, desiccant, and chemical analysis reagent. It can also be heated with hydrogen to make calcium hydride.

    The formula of calcium nitride is Ca3N2 O (CaN)+N2 and is written as Ca3N2 O or C3N2. It can be easily found in nature, but it is not a common ingredient in industrial chemical manufacturing.

    In chemistry, a nitride is a compound of nitrogen where nitrogen has a formal oxidation state of -3 and has an ionic radius of about 140 pm. Nitrides are often classified into three types based on their chemical inertness and ability to withstand high temperatures: ionic, covalent, and interstitial.

    Nitrides can be produced from various forms of nitrogen, including sulphur and carbon. They are often used in the production of nitrided metals, such as boron, vanadium, and silicon.

    They are also used as abrasives and as hard coatings. Some nitrides, such as those of boron and vanadium, are chemically inert; others, such as those of titanium and silicon, are very refractory and can be used in the construction of crucibles.

    The nitriding reaction of calcium is carried out by injecting successive puffs of nitrogen into the molten metallic calcium. This is done in a process called the Frank-Caro process. However, it is not suitable for large-scale production and does not achieve complete nitriding of the calcium. It also requires careful control of the temperature.

    Mar 30
  • Sodium stearate is an anionic fatty acid salt. It is an important ingredient in soaps and other cosmetic products. It is commonly derived from vegetable oils such as coconut oil and palm oil and animal fats like tallow.

    It is an emulsifier, dispersant and thickener used to create solid "stick-like" soaps. It is also used as a lubricant, water repellent and plastic stabilizer.

    The chemical formula of this compound is C18H33NaO2 and it appears as a light tan solid with a tallow-like odor. It is soluble in hot water and ethanol and acid decomposition produces stearic acid and the corresponding sodium salt.

    This fatty acid has a double bond at the middle of its long carbon chain, making it cis-trans and hydrophilic. It can mix with water slowly to form a slightly alkaline solution upon dissolution.

    Unlike other fatty acids, stearic acid can be used as a natural waterproofing agent in the production of soaps and a number of other products. It is one of the least allergenic fatty acid salts and does not cause irritation to the skin.

    Sodium stearate is a product of saponification, the process whereby certain fatty acids are dissolved in sodium hydroxide to produce soap. The main raw materials are oils and sodium hydroxide, a weakly alkaline liquid that is used as a catalyst in the saponification reaction.

    Mar 29
  • sodium stearate chemical formula, C18H35NaO2, is an organic compound that has the chemical structure of a long-chain fatty acid with a double bond at the middle of its carbon chain. It is a white solid with a slight tallow-like odor.

    It is a sodium salt of stearic acid and has been widely used as a thickening agent, emulsifier, dispersant and lubricant in soap and cosmetic formulations. It is also used to make latex paints and rubbers, inks, and food additives.

    Sodium stearate is made through a saponification process. It is a natural soap ingredient, derived from the splitting of coconut and palm oils into glycerin and fatty acids. This process results in a chemically stable and highly functional soap that can be used to produce a variety of cosmetics, pharmaceuticals, deodorants, and personal care products. It is a natural, non-allergenic and non-irritating ingredient that can be used to treat and prevent a wide range of skin conditions. It has also been found to be effective in controlling foam during rinsing. It is also used as a waterproofing agent. It is a safe ingredient for use in many personal care products and can be purchased in powder form. It is a white solid and can be soluble in water or alcohol. It has excellent emulsification, penetration and detergency properties.

    Mar 28
  • zinc stearate emulsion has many applications, including rubber, plastics, coatings, inks, paints, thermal paper and cosmetics. It can be used as a release agent, color retention agent and lubricant.

    Generally speaking, zinc stearate is a white powder that is insoluble in water and has a slight fatty odor. It is produced from stearic acid by melting or heating it at high temperature.

    It is widely used as a release agent, heat stabilizer and lubricant in the plastics, polyolefin and rubber industries. It is also used in the wood coatings (lacquer) industry as a polishing additive. It can be used to improve texture and abrasion resistance, and it is a good thickening agent for wood coatings.

    The preparation method is as follows: selecting deionized water, add it into the dispersion machine, warm up to 6080degC, adding wetting dispersing agent, emulsifier, crosslinking agent, bactericide and suspending agent under stirring, and making its dispersion and emulsion, constant temperature 30-40 minutes.

    After the emulsification is completed, water-based defoaming agents are added to quickly eliminate bubbles in the emulsion. Zinc stearate is then added and mixed until it is completely emulsified, then ground to a particle size of 0.5 to 1 micron.

    This dispersion is characterized by being stable, low in viscosity and uniform, having ideal enhancing and lubricating effects. It can be stored for a long time without changing quality, does not appear phenomena of flocculation stratification, has no foam during the production process and is ideal in product quality.

    Mar 28
  • Does magnesium stearate cause arthritic pain or allergies?

    Magnesium stearate is a common ingredient found in supplements and medication capsules. It is a flow agent, lubricant and binder that helps ensure the consistency and quality of your product.

    It is derived from stearic acid, a saturated fat. The stearic acid is extracted from vegetable sources such as coconut oil and palm oil.

    The National Center for Biotechnology Information recommends consuming less than 2,500 milligrams per kilogram of body weight (mg/kg) daily, which is the equivalent to 170,000 mg for a 150-pound adult. That amount should be safe for most people.

    Does magnesium stearate affect the absorption of your pills?

    It may delay tablet dissolution, but it does not impact the overall bioavailability of your supplement or medicine. The stearate is added to the tablets specifically so that they break down more slowly, not so that they are absorbed more quickly.

    Does magnesium stearate have a laxative effect?

    If you consume too much magnesium stearate, it can have a laxative effect. This can trigger a bowel movement or diarrhea, which can be uncomfortable and unpleasant.

    Does magnesium stearate suppress your immune system?

    It has been reported that small amounts of magnesium stearate can suppress your immune system, but this is based on laboratory studies where large amounts of stearic acid damaged cell membranes in immune cells. This type of study does not replicate how your body actually functions when you eat normal amounts of stearic acid, and it is unlikely that the small amount of magnesium stearate in your supplements would have such an effect.

    Mar 23
  • Silicon Nitride Powder is a kind of black gray powder, which has good mechanical properties such as hardness, wear resistance and inherent lubricity. It is often used in bearings, turbine blades, mechanical seal rings and permanent molds.

    In recent years, manufacturers of metal, ceramic and graphite matrix composites have started to experiment with the application of silicon nitride nanopowder as a key additive or component. In metallurgy, this is especially useful for coatings on sleeves, valves, cutting edges, bearings, and turbines that are prone to extensive wear.

    The use of si3n4 powder is also gaining interest in tribological applications for a variety of reasons, namely: high hardness, wear resistance and inherent lubricity. These characteristics are particularly attractive to tribological applications, as they are not influenced by the chemical composition of the material and can provide good wear resistance under unlubricated conditions.

    A number of studies have been conducted on the tribological properties of si3n4-based ceramics with particulate additions of TiB2. These include a comparison of the sliding wear of a Si3N4-40 vol%/TiB2 disc against a BGSN ball in the presence of various phosphorus compounds (Kd). Jones et al. (2001) also performed tribological tests on Si3N4/TiB2 tribo-pairs with particulate additions of TiB2.

    Mar 23
  • Aluminum carbide (al4c3) is an important compound for the development of aluminum-based composite materials. It is a diamond-hexahedral phase that has high hardness, shear strength, and melting point. It is also an ideal second-phase strengthening material for aluminum matrix composites.

    al4c3 is a highly hygroscopic inorganic material with the chemical formula of al4c3. It appears as pale yellow to brown crystals that are stable up to 1400 degC. It decomposes in water and produces methane as a byproduct.

    Typical applications of al4c3 are as an abrasive in high-speed cutting tools and as an amorphous powder for pyrotechnics. It has approximately the same hardness as topaz.

    It is widely used in a variety of industries because of its light weight and good formability. However, it is faced with the problem of low strength, wear-resistance and poor high-temperature performance.

    The synthesis of al4c3 can be achieved through several methods, such as metal direct carbonization and carbon thermal reduction. The advantages of these methods include low synthesis temperature, short reaction time, and uniform particle size.

    However, these methods have their own disadvantages. For example, metal direct carbonization has a high synthesis temperature and long reaction time, while the high-energy ball grinding method has a large energy consumption and inefficient powder particle formation.

    Therefore, the annealing process is an important step in obtaining al4c3 particles. The effect of annealing time on the microhardness value and Al grain size was studied. The results showed that the microhardness value of Al-4.5 wt.% C powder mixture increased after annealing for 1 h at 300 degC, 400 degC, 500 degC and 600 degC. Moreover, nanosized al4c3 particles formed during annealing. These particles acted as a driving force during subsequent annealing and enhanced the microhardness of Al-C powder particles.

    Mar 23
  • The modern industrial sector is dependent on ultrafine alumina. The crystal structure of ultrafine-grained alumina do not change, and the surface effect and size are different from those found in microscopic objects. These effects include quantum effects as well as macroscopic quantum tunneling effects. The powder has excellent properties, including high strength and hardness. It is also resistant to abrasion, high temperatures, oxidation, and high resistance. They have been extensively used as precision ceramics for bioceramics, chemical catalysts, rare earth trichromaticphosphors, integrated circuit chip and light source devices. 1. Materials made of ceramics and composite materials
    In conventional ceramics, ultrafine alumina can be used to increase toughness and decrease the sintering temp. Because ultrafine aluminum powder is superplastic, it eliminates the limitations on the use of low temperature plastics. This is why low temperature plastic ceramics are made. Many applications.
    Ultra-fine aluminum powder is also able to produce a novel type of composite ceramic material and an alloy ultra-fine material. SiC–Al2O3 ultrafine composite material is most notable. With a flexural strength of 300-400 MPa, it can be increased to 1 GPa with single-phase silica carbide ceramics. Also, the material has a greater fracture toughness by over 40%.
    As a dispersion additive and strengthening agent, ultra-fine Alumina is also available. When cast iron laps have been cast, the ultra-fine powdered alumina is used for metamorphic nucleation. The wear resistance can then be increased by several hundred times.

    2, Surface protective layer material:
    The new, ultra thin transparent material is composed of ultrafine alumina particles that are coated on surfaces of metals. Ceramics, plastics, and hard alloys. This can improve the resistance to corrosion, wear resistance, surface hardness and wear resistance. This material can be used for surface protection on machinery, tools, pipes and other similar items.
    One of these is the ultra-fine aluminum ceramic coating tool. This combination of cemented caride and ceramic materials has many advantages. The wear resistance and toughness are greatly increased, as well as the ability to coat more tools. This multiplies the process efficiency by many times, and it is easily repeated.

    3. Catalyst & its carrier
    Ultra-fine Alumina exhibits a high degree of pore size distribution and surface area, with a maximum of 60 to 400 m2/g. It also has a large number of mismatching bonds, under-oxygen and surface smoothness due to the reduction in particle size. The ideal catalyst is a catalyst or catalyst carrier. It can cause a deterioration and create an uneven step. HDS activity is greater in the Co-Mo ultrafine-alumina catalyst with particle-loaded Como than for the Co-Mo common alumina-loaded Como. The catalyst's HDS activity.
    The main application of catalyst and carrier is g-Al2O3, which is widely used in automobile exhaust gas purification, catalytic combustion, hydrodesulfurization, petroleum refining, and polymer synthesis.

    4. Medical and biological materials
    The bioceramic ultrafine alumina does not significantly corrode in normal environments. It is also very structurally compatible. Because the new tissue grows in the pores on the porous ceramic, the bond strength to the body tissue is high. This makes it a popular choice in medical practice. It can be used to make artificial bones and root implants. This device can also be used for alveolar expansions and the reconstruction of maxillofacial problems. It can also repair or modify facial features.
    Research is currently being done on tissue materials, such as artificial airways and bioceramic materials, that emulate biological functions, artificial intelligence, etc.

    5, Semiconductor materials
    Ultrafine alumina is powder with a large surface and interface. It's very sensitive to external moisture. Temperature changes quickly can cause changes in interface ion transport and surface temperature. Ultra-fine alumina AC resistance changes linearly between humidity levels of 30-80%. The AC response is quick, reliable, high-sensitivity, low-pollution, and it can be kept in dusty and smoke environments. This sensor is ideal for moisture sensing and can also be used as a wet-electric thermometer.
    Additionally, ultra-fine aluminum is an extremely common substrate material that can be used for semiconductors. This has many advantages including electrical insulation, chemical endurance, strong radiation resistance and heat resistance. The microelectronics industry, electronics, as well as the information and communications industries use a variety of substrate materials and LSIs.

    6, Optic materials
    Nanoscale Alumina absorbs ultraviolet radiation and produces light waves at wavelengths related to particle size. You can use it as a protective film to the phosphor layer of a compact fluorescent lamp. Additionally, you can combine it with rare earthphosphor to make a luminescent substance for fluorescent tubes to increase the tube's life.
    The ultra-fine alumina can also be used as an anti-ultraviolet absorber. To reduce lamp light decay, and to increase the lamp yield, you can add ultrafine gAl2O3 powder.
    Non-hazardous, non-hazardous Polymer is used to coat the surfaces of alumina granules. It can also be used as a cosmetics base and sunscreen.
    This is because ultrafine particles of alumina have superior mechanical, electrical and chemical properties than conventional particles. High purity ultrafine Alumina Powder has emerged as a promising new field of material research in the last few years. One direction.

    Luoyang Tech Co., Ltd, a leading manufacturer of ultra-fine Alumina Powder, has more than 12 years' experience in chemical product research and development. We are available to assist you with high quality, ultra-fine Alumina Powder. Send an inquiry .

    Mar 22
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