Knowledge about nano materials | Rboschco


  • Aluminum carbide, Al4C3, is a complex crystal compound of alternating layers of aluminum and carbon. Each aluminum atom is coordinated to 4 carbon atoms. The alternating tetrahedra of aluminum and carbon atoms form an unusual crystal structure that is stable at temperatures up to 1400 degC.

    chemical formula of aluminium carbide: (Chemical Formula IUPAC nomenclature: Methides)

    Metals that form carbides exhibit several unique properties in addition to their toughness. They often possess high refractoriness and low thermal expansion, and are generally highly resistant to corrosion and oxidation. These characteristics make them ideal for coatings used on tools, drills and other industrial materials.

    Some of the most common carbide compounds of aluminum include aluminum fluoride (AlF3), sodium aluminate (NaAlH4) and lithium aluminate (LiAlH4). Lithium aluminate is widely used as a reducing agent in organic synthesis and as a stabilizer in electrolytic aluminum production.

    It can be produced by reacting the alumina with a halogen. It is inert, subliming without melting at 1291 degC and exhibits a bridge-like structure with good properties for molecular compounds.

    Other carbides can be formed by combining aluminum with other elements, such as magnesium, silicon, copper and manganese. The aluminum ions bind to the carbon atoms of other metals, resulting in alloys that are hard, refractory and have low thermal expansion.


    Various zeolite materials are being produced using aluminum dross as a raw material. These zeolite materials have been used in applications such as waste treatment, filtration and separation. Some of these materials also have applications in solar cells, biomedical devices and fuel cells.

    Apr 04
  • 3d printing inconel 718 is a new technology that allows you to create any product you can imagine. It is a type of additive manufacturing (AM) process that uses CAD data to create a digital representation of a physical part, which is then built by fusing successive layers of powder material using a laser or other light source.

    This process allows you to create geometrically complex parts that would otherwise be impossible to manufacture. Moreover, 3d printing is a cost-effective solution because it can construct parts that require minimal material usage and little or no waste.

    Metal based 3D Printing

    The first step is to create a CAD model that defines the shape of the product you want to print. Then, a layer of Inconel powder is spread on the printer's bed, and a laser fuses the material. Depending on the machine and the type of powder, this process can produce 16-30 microns of precision at a time.

    DMLS vs Filamet(tm)

    DMLS is a metal 3D printing technology that uses direct metal laser sintering to make parts solid, without the need for post-processing. It is a very accurate, high-quality and reliable way of producing parts that are not only solid but also have great detail, high layer heights and a smooth finish.

    Although Filamet(tm) has some disadvantages compared to DMLS, it is still an excellent choice for a large variety of applications, such as prototyping and casting. It has a high resistance to oxidation and corrosion, good strength, tensile, fatigue and creep-rupture properties, as well as easy fabrication and welding.

    Apr 03
  • manganese oxide powder is a fine dark brown powder that is composed of particles of manganese oxide. This nanomaterial is a valuable ingredient in the production of many biosensors, voltage measurement devices and more.

    American Elements produces spray dry and non-spray dry high purity manganese oxide powder in a variety of sizes including micron, nanon, and milligrams. It is suitable for use in pressed and bonded sputtering targets and chemical vapor deposition (CVD) processes.

    Various granulations of coarse and low micron powder are available, ranging from -325 mesh to 60 x 80 mesh. Typical application is for sputtering targets in the Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processing for the production of thin film microstructures, coatings, and films.

    In ceramic applications, manganese oxide is used as a colorant and decolorizer. It is also used in the manufacture of dry-cell batteries, notably in alkaline and zinc-carbon battery cathode mixes.

    It is used in ceramic glazes to produce blacks, browns and purples. The refractory properties of this metal make it a good choice for making glazes that are fired below 1080C.

    This metal is a major component of Leclanche cell (Zn RAM) and alkaline batteries. For these applications, purity is critical.

    Nano manganese oxide powder is a very fine dark brown powder that is composed of particles ranging from 40 to 60nm in diameter. This nanomaterial is a valuable ingredient for the production of many biosensors, voltage detection devices and more.

    Apr 02
  • The market for artificial graphite powder is expected to experience a significant growth during the forecast period. This market is driven by its high purity, low ash content, and superior performance. The demand for artificial graphite is increasing in the metallurgical industry and other sectors.

    Graphite is a soft, black crystalline mineral that contains carbon in a hexagonal crystalline structure. It is found in three different forms: natural graphite, disseminated crystal flake graphite, and vein graphite.

    It is used for refractory materials, batteries, expanded graphite, brake linings, foundry facings and lubricants. It is also used to replace asbestos in brake shoes for heavier vehicles and as a reducing agent in steel making (recarburising).

    The chemically inert mineral has a metallic lustre and a low specific gravity. It is odourless, tasteless, and soluble in water as well as most organic solvents.

    Applications of artificial graphite:

    The major application of artificial graphite is in a wide range of industries such as metallurgical industry, chemical industry, and electrical industry. It is used in lubricants, as a reducing agent, as an additive to adjust the rheology and conductivity of magnetorheological elastomers, in the manufacture of crucibles and other refractory products, in the production of steel, as electrodes for electrochemical cells, and in the production of graphite rods for heat exchangers.

    It is a versatile and cost effective material for many applications. It can be used as an additive in paints and epoxies to increase the conductivity and reduce friction, or it can be used on its own as a dry lubricant. It can be mixed with other additives to form a composite material or can be added directly to the material itself to increase the carbon content and make it more abrasion resistant.

    Apr 01
  • Silica is an essential mineral found naturally in the earth, plants, and our bodies. It is known to promote bone-building, protect the teeth, and help form collagen.

    silicon oxide powder has been used in a variety of applications including semiconductors, fibers, glasses, ceramics, and more. It has a high dielectric constant, mechanical resistance, and chemical selectivity making it an excellent material for use in microelectronics and chromatography.

    A method for producing a silicon oxide powder having a BET specific surface area in the range of from 5 to 300 m2/g is presented. The method comprises a depositing step wherein a raw material powder mixture containing a silicon oxide powder is deposited on a substrate surface by heat-treating the deposited particles.

    The deposited powder is then cooled to a temperature of between 200 and 400 deg C. This process is repeated for the remainder of the deposited powder.

    An apparatus for implementing the inventive method of producing a silicon oxide powder is provided. This apparatus is generally designated at 1 and includes a reaction furnace 10 and a deposition chamber 20 interconnected by a transfer conduit 30 having a muffle 11 disposed therein.

    There are a number of amorphous and crystalline forms of silicon dioxide available, which can be produced using the processes of LPCVD and PECVD. Amorphous silicon dioxide is typically characterized by the tetrahedral coordination of each of its atoms to four oxygen atoms.

    The crystalline form of silica is generally characterized by a double bond rule, in which each atom of the molecule is covalently bonded to two adjacent oxygen atoms. This tetrahedral structure distinguishes crystalline silicon dioxide from carbon dioxide, which is more linear in nature.

    Mar 31
  • al4c3 is a binary compound of aluminium and carbon. It is quite hard and is often used as an abrasive material.

    It has a hexagonal crystal structure and decomposes into methane in water. It is stable up to 1400 degC and has a density of 2.36 g/cm3.

    Chemical Formula: al4c3 (Al+C)2]]]], IUPAC nomenclature: methide, CAS no. 12656-43-8, d-form, molecular mass 3.12 g/cm3, density 4.32 g/cm3.

    Crystal Structure: It has complex lattice structures. It has alternating layers of tetrahedral aluminum atoms coordinated to 4 carbon atoms with an octahedral binding environment for Al and a tripyramidal binding environment for Carbon.

    X-ray powder diffraction analysis shows that al4c3 consists of two interconnected Bravais lattices; one consisting of six Al atoms at a distance of 217 pm and a distorted octahedron at a distance of 190-194 pm. The other is a distorted trigonal bipyramidal structure of four Al atoms at a distance of 225 pm and a fifth Al atom at 224 pm.

    A small amount of al4c3 is found as a corrosion product of technical calcium carbide, in electrolytic manufacturing. It is also present in an aluminium-aluminium carbide composite material produced by mechanical alloying, by milling aluminum powder with graphite particles.

    Mar 30
  • 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
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