What is Amorphous Boron Powder Amorphous Boron Powder is a sort of brown odorless powder, due to its boron atoms being bonded together in random order. It is different from crystalline boron is black in color and extremely hard The atomic weight of boron is 10.81 (according to 1979 international atomic weight). Its melting point reaches to 2300 ℃±2 ℃. Fahrenheit:2550 ℃. Specific gravity 2.34 to 2.37.
It is insoluble in water, hydrochloric acid, ethanol and ether, soluble in cold concentrated alkali solution to decompose hydrogen, oxidized to boric acid by concentrated sulfuric acid and concentrated nitric acid.
Boron is in a special position between metal and non-metal in the periodic table, with strong negative electricity, small atomic radius, concentrated nuclear charge and active chemical properties. Stable at room temperature, oxidized when heated to 300 ℃ and burned at 700 ℃; tasteless, odorless, non-metallic properties similar to silicon; at high temperature, boron can interact with oxygen, nitrogen, sulfur, halogen and carbon; can be directly combined with many metals to form boride.
What is Amorphous Boron Powderused for? The chemical properties of amorphous boron are more active than that of crystalline boron. Crystalline boron is so hard that it is often used instead of diamond to make cutting tools or drills. Amorphous boron powder is an important energy material. As a solid fuel in composite solid propellant, the calorific value of boron is more than twice that of carbon, about two times that of aluminum and more than two times that of magnesium. Its volumetric calorific value is almost three times that of hydrocarbon fuel, and its density is only slightly lower than that of aluminum. Boron should be the best non-metallic fuel in terms of energy. And the ignition temperature of amorphous boron is greatly reduced because of its irregular shape and large specific surface area. Above all,the Amorphous Boron Powder material could be uesd for(including but not limited)
1.As an ideal solid fuel in composite solid propellant with high calorific value(The calorific value is more than twice as much as carbon, about twice as much as aluminum and more than twice as much as magnesium)It has almost three times the calorific value of hydrocarbon fuels and is only slightly less dense than aluminum, with the highest calorific value by volume. In terms of its energy, boron should be the best non-metallic fuel. The ignition temperature of amorphous boron decreases greatly because of its irregular shape and large specific surface area.
2.As a deoxidizing agent preventing metals from oxidizing at high temperatures
3.As a part of the alloy to improve the properties of metals,such as methods below:
Can be used as a compound or as an addition to alloys. Can be used for special alloy steel smelting and melting steel gas scavenger, electronic industry for ignition tube ignition agent, atomic reactor control rod and rocket high energy fuel; It is an important raw material for the manufacture of high purity boron halide, and is the raw material for the preparation of various borides. Can replace and save large quantities of precious and scarce metals; Boron and its compounds can also be used as catalysts for organic chemical reactions.Such as: Lanthanum boride,used in more than 20 military and high-tech fields, such as radar, aerospace, electronic industry, instruments, medical devices, home appliances, metallurgy, environmental protection, etc. Boride ceramics,widely used in the areas of metallurgy, electronics, medicine, ceramics, nuclear industry, chemical industry,because of higher corrosion resistance and wear resistance, stability etc. Magnesium Diboride Powder,MgB2 is the metal compound superconductor with the highest critical temperature so far, and its superconducting transition temperature is 39K, i.e. -234 ℃. As a new material with superconductivity, magnesium diboride opens up a new way to study a new generation of high-temperature semiconductors with simple structure.
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