Advanced Nano Material

  Overview of spherical alumina Al2O3 powder Spherical alumina  is an inorganic substance with the chemical formula Al2O3. It is a high hardness compound also known as bauxite in mining, ceramics and materials science. It is a white solid, insoluble in water, odorless and tasteless, and very hard in nature. It is easy to absorb moisture but not deliquescence (does not absorb moisture after burning). Alumina is a typical amphoteric oxide (corundum is α-shaped and belongs to the densest hexagonal compound. It is an inert compound, slightly soluble in acids and alkalis, and resistant to corrosion. It is soluble in inorganic acid and alkali solutions, but almost insoluble. Water and non-polar organic solvents; relative density (d204) 4.0; melting point 2050 ° C, boiling point 2980 ° C, ionized crystal at high temperature, commonly used in the manufacture of refractory materials. Spherical alumina Al2O3 powder features: high filling density: large particle size, wide particle size distribut

  Overview of Fumed Silica Fumed silica (CAS: 112945-52-5) , also known as fumed silica because it is produced by fusing tiny droplets of amorphous silica into branched, chained, Three-dimensional secondary particles and then condensed into tertiary particles. The resulting powder has very low bulk density and high surface area. When used as a thickener or reinforcing filler, its three-dimensional structure leads to increased viscosity, thixotropic behavior. It is an amorphous silica product, the primary particle size is between 7~40nm, the aggregate particle size is about 200~500nm, the specific surface area is 100~400m2/g, the purity is high, and the SiO2 content is not less than 99.8%. Untreated fumed silica aggregates contain a variety of silanol groups. Application of Fumed Silica Fumed silica  is used in powders as a general purpose thickener and anti-caking agent (free-flowing agent). Like silica gel, it can be used as a desiccant. It is used in cosmetics due to its light diffus

  Overview of manganese oxide Mn2O3 Manganese oxide Mn2O3  is an oxide with chemical formula of Mn2O3 and molecular weight of 157.88. It is a black cubic crystal. The relative density is 4.50. Mn2O3 is different from many other transition metal oxides because it does not adopt corundum (Al2O3) structure. II. Generally recognized form of Mn2O3, i.e α- Mn2O3 and γ-  Mn2O3.Mn2O3 is insoluble in water, acetic acid and ammonium chloride solution, but soluble in other inorganic acids. Dissolve in cold hydrochloric acid to form Brown solution, form red solution in hot dilute sulfuric acid or concentrated sulfuric acid, decompose into MnO2 and manganese nitrate, and decompose into Mn3O4 and release O2 in hot nitric acid. Manganese trioxide can be used in the printing and dyeing process of fabrics, the oxidation process of carbon monoxide and organic compounds, the synthesis of soft magnetic materials, or the synthesis of lithium-ion batteries as an important basic material. When MnO2 is heated

  Overview of Zinc Sulfide ZnS Zinc sulfide  is a white to off-white or light yellow powder, which becomes darker when exposed to light, stable in dry air, and gradually oxidized to zinc sulfate when stored for a long time in humid air or containing water. Soluble in dilute inorganic acid, soluble in alkali, insoluble in water. Relative density 3.98 (alpha type), (d25) 4.102 (beta type). irritating. Is zinc sulfide fluorescent or phosphorescent? Zinc sulfide  is one of the most common phosphorescent materials. Phosphorescence is a special type of photoluminescence. Unlike fluorescent substances, phosphorescent materials emit absorbed energy immediately. What are the properties of zinc sulfide? Zinc sulfide  is white or slightly yellow powder. Turns into crystals when burned in H2S gas. Its α variant is a colorless hexagonal crystal with a density of 3.98g/cm3 and a melting point of 1700°C. Its beta variant is a colorless cubic crystal with a density of 4.102 g/cm3, which transforms to

  Overview of Nitinol Powder Nitinol , also known as Nickel-titanium alloy, is a metal alloy of nickel and titanium in which the two elements are present in roughly equal atomic percentages. Different alloys are named according to the weight percent of nickel, such as nickel. Nitinol 55 and Nitinol 60. It exhibits shape memory effect and super elasticity at different temperatures. Nitinol is a shape memory alloy, a special alloy that can automatically restore plastic deformation to its original shape at a certain temperature. The expansion rate exceeds 20%, the fatigue life is 7 times that of 1*10, and the damping characteristics are 10 times that of ordinary Compared with springs, its corrosion resistance is better than the current best medical stainless steel, so it can meet various requirements in engineering and is an excellent functional material that can meet the needs of medical applications. How is Nitinol powder produced? Nitinol  is extremely difficult to manufacture due to t

  Overview of nano silicon anode material silicon powder Silicon  is the most promising electrode material for next-generation lithium-ion batteries, with a specific capacity (3600 mAh/g) about 10 times higher than graphite (372 mAh/g). However, due to the significant expansion (over 300%) of the material under load (lithiation) and the instability of the solid electrolyte interface layer (SEI), its use is severely restricted. The poor mechanical stability and chemical passivation performance of silicon electrodes make the cycle performance of silicon electrodes far unable to meet the requirements of battery systems, and a lot of research and suggestions have been stimulated to circumvent these limitations. During the lithium insertion process, the volume of silicon changes so much (about 400%) that the silicon cracks and falls off the collector, causing the prototype lithium-silicon battery to lose most of its capacity in less than 10 charge and discharge cycles. The key to the succes

  Overview of Sodium Stearate Sodium stearate  is a chemically synthesized ingredient, not natural, but derived from the natural ingredient stearic acid, a saturated fatty acid that can be extracted from plant sources such as canola, palm, and sunflower oils . py solids have a slippery feel, have a fatty smell, and absorb water in the air. Sodium stearate is white fine powder or block solid, smooth to the touch, has a fatty smell, and absorbs water in the air. The aqueous solution is alkaline due to hydrolysis, while the alcoholic solution is neutral. It is prepared by the interaction of stearic acid and sodium hydroxide. Widely used in the manufacture of cosmetics, detergents and lubricants. Commonly used in the production of food, ceramics, medicine, paper, rubber, glass, fuel, ink, etc., and also used as waterproofing agent, plastic stabilizer, and adhesive. Application of sodium stearate Cosmetic Stearic acid  is widely used in cosmetics, often as an emulsifier and thickener. Howev