Boron containing additive calcium hexaboride for improving thermal strength
What is calcium hexaborate?
Calcium hexaboride, a chemical called calcium borate, is mainly synthesized through carbothermal reduction, self-propagation, and other means. A material research institute in China and some universities have certain synthesis research technologies. There are many compounds between B-Ca, but the common and relatively stable one is CaB6. Therefore, calcium borate mainly refers to calcium hexaboride CaB6. Its structure is common to hexaboron compounds such as AB6 and RB6, with A representing alkaline earth, R representing rare earth, and CsCl structure. The difference is that the B6 octahedron replaces the position of Cs. Due to the strong covalent bond between B-B, it has the characteristics of a high melting point and high hardness. Its physical and chemical properties are stable. When calcined in air, submicron CaB6 exhibits thermal weight gain after 800 degrees Celsius, making oxidizing difficult. CaB6 is generally insoluble in hydrochloric acid and sulfuric acid. Therefore, impurities are technically removed by thermal hydrochloric acid, but CaB6 is soluble in nitric acid.
Main uses of calcium hexaborate
They were used as a boron-containing additive for oxidation resistance, corrosion resistance, and increased thermal strength of dolomite and magnesium dolomite carbon refractories. They were used as a deoxygenation and degassing agent for high-conductivity red copper to improve its conductivity and stability—new materials for neutron protection in the nuclear industry. Used as a new semiconductor material in spin electron modules with a Curing temperature of 900 K. Used as a raw material for manufacturing boron trichloride (BCl3) and amorphous boron. She was a raw material for manufacturing high-purity metal borides (TiB2, ZrB2, HfB2, etc.) and high-purity boron alloys (Ni-B, Co-B, Cu-B, etc.). Used to manufacture mixtures containing the catalyst calcium boron nitride (Ca3B2N4) and hexagonal boron nitride, and produced crystalline cubic boron nitride with excellent performance and used as a desulfurized, deoxidizer, and bronzer for boron alloy cast iron. 9. Used as a desulfurized, deoxidizer, and bronzer for boron steel and used as a deoxidizer for metal melting.
Preparation of calcium hexaborate
Using porous calcium borate and a current metal collector as a cathode, using an insoluble conductor material as an anode, electrolysis is conducted in a molten salt electrolyzer at 500-750 ℃. The molten salt electrolyte used contains the corresponding halogen salts of the metal that can chemically reduce calcium borate. The voltage applied by electrolysis is sufficient to minimize calcium borate but insufficient to decompose the molten salt electrolyte; Remove the reduction product on the cathode from the electrolytic tank, wash with water and acid, remove impurities, and dry to obtain CaB6 powder. The obtained ultrafine calcium hexaboride can be used as a harmful electrode material for high-specific energy alkaline batteries. This method overcomes the shortcomings of previous boride synthesis, such as high temperature, low yield, and expensive raw materials, and can be continuously produced.
Price of calcium hexaborate
Calcium elaborate particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of calcium elaborate. A large amount of large amount will be lower. The Price of calcium elaborate is on our company's official website.
Calcium hexaborate supplier
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