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Investigation on Characteristics And Application of Metal Borides And Calcium Boride

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Update time : 2020-04-09 10:42:32

Metal borides are hard compounds formed by transition metals and boron. The crystal structure of boride is determined by the structural characteristics of boron atoms. The chemical stability of the boride is gradually decreased in the order of IVA to VIA. The most stable borides are TiB2, ZrB2, and HfB2.
 

Borides characteristics:

Borides is a crystal with a high hardness and melting point. It is chemically stable and cannot be dissolved by hot, concentrated nitric acid. It can be prepared by direct compounding of elements or by reducing oxides with active metals.

The hardness of borides is comparable to that of carbides, and some are slightly higher. This is because borides are more covalently bonded than carbide. However, borides are quite brittle, their inertness is strong, and their chemical properties are stable, so they are used in certain fields.
 

Boride has the characteristics of high conductivity, high melting point, high hardness, and high stability: boride has relatively high thermal conductivity and strength, so the thermal stability is relatively good, and the oxidation resistance of boride at high temperature is based on Group IVB metals Boride is the best.
 

Borides are soluble in molten alkali. Borates of rare earth and alkaline earth metals are not attacked by moist air or dilute hydrochloric acid but are soluble in nitric acid. Almost all borides have the appearance and properties of metals, with high conductance and positive temperature coefficient of resistance. The borides of Ti, Zr, and Hf have better conductivity than their metals.
 

Borides application:

Borides have a wide range of applications in the textile industry. For example, it can be used as a high-efficiency catalyst for resin finishing, and can also be used as a flame retardant for flame retardant finishing. It is one of the indispensable raw materials in the production of electroplating, photographic equipment, and detergents.

According to statistics, in the early 1990s, the consumption of borax and boric acid accounted for 39.2% and 35.30% of the total consumption in daily-use glass, daily-use enamel, light bulbs, glass instruments, and other light industrial sectors; In comparison, the United States was earlier than 20 In the late 1980s, consumption in the glass and ceramics industry reached 193,300 tons (in terms of B2O3), and by the beginning of the 21st century, the consumption ratio had reached 71%.
 

The consumption of soap washing and bleaching was 31,700 tons, accounting for 8.97% of the total consumption; the consumption of glass, ceramics, and enamel in Japan reached 59,000 tons during the same period, accounting for 74.6% of the total consumption, and the cleaning and bleaching consumption At 1 million tons, accounting for 1.3% of the total; while consumption in Western Europe at that time was nearly 1/3 of borate used for soap and detergent bleaching, consumption was 550,000 tons of sodium perborate tetrahydrate and 55,000 tons of monohydrate Sodium perborate.
 

By the beginning of the 21st century, detergents, soaps, and personal care accounted for 15% of the total consumption in the world borate market.
 

Boride's creep resistance is very good, which is very important for gas turbines and rockets that require materials to work for a long time at high temperatures and can maintain strength, resistance to deformation, corrosion, and thermal shock. Various alloys or cermets based on borides, carbides, nitrides, can be used to manufacture rocket structural components, aviation device components, turbine components, high-temperature material testing machine sample holders and instrument components, bearings and measure high-temperature Conehead for hardness and some structural parts of nuclear energy device, etc.
 

Calcium boride properties:

Calcium boride has the characteristics of a high melting point and high hardness. Its physical and chemical properties are quite stable. During air calcination, sub-micron CaB6 will only gain weight after 800 degrees Celsius, and it is not easy to oxidize. CaB6 is generally insoluble in hydrochloric acid and sulfuric acid, so technically remove impurities by hot hydrochloric acid Material, but CaB6 is soluble in nitric acid.
 

Calcium hexaboride is dark gray powder or granules. The melting point is 2230 ° C, the relative density is 2.33g / cm 2, and it is insoluble in water at 15 ° C normal temperature.
 

Silicon boride is a shiny dark gray powder with a relative density of 3.0g / cm and a melting point of 2200 ° C. The grinding efficiency is higher than that of boron carbide and higher than silicon carbide. They are insoluble in water, resistant to oxidation, thermal shock, and resistance Features such as chemical attack, especially high strength and stability under thermal shock.

Calcium boride main application:

1. Calcium boride is used as a boron-containing additive for dolomite charcoal and magnesium dolomite charcoal refractories to resist oxidation, erosion, and improve thermal strength.

2. Used as a deoxidizing and degassing agent for highly conductive red copper to improve conductivity and strength.

3. Used as a new type of material for preventing neutrons in the nuclear industry.

4. Used as a new type of semiconductor material in spin electronic components with a temperature of 900K.

5. Used as a raw material for manufacturing boron trichloride (BCl3) and amorphous boron.

6. Used as 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.).

7. Calcium boride is used to manufacture a mixture of the catalyst containing calcium-boron nitride (Ca3B2N4) and hexagonal boron nitride, and to produce crystal cubic boron nitride with excellent performance.

8. Used as desulfurization, deoxidation, and boron increaser for boron alloy cast iron.

9. Used as desulfurization, deoxygenation, and boron increaser for boron steel.

10.Used as a deoxidizer for metal smelting.
 

As a leading nano-technology development and product applications manufacturer, Trunnano dominates the markets. Trunnano provides solutions across the various processes and steps of laboratories and industries. Our professional working team provides the perfect solutions to help increase efficiency in various industries, create value, easy to deal with various challenges.
 

Trunnano provides different kinds of boride powder, such as hafnium diboride powder, zirconium diboride powder, aluminum diboride powder, magnesium diboride powder, etc. Under the COVID-19, we can still ship materials to your address all over the world, and we can meet customers’ requirements for small quantity samples. If any questions, please feel free to contact us.


TRUNNANO (Luoyang Trunnano Tech Co., Ltd ) is a professional Calcium boride manufacturer with over 12 years experience in chemical products research and development. If you are looking for high quality Calcium boride, please feel free to contact us and send an inquiry.

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