呈灰色到黑色固体粉末。其熔点为2360℃,沸点约为2700℃,比重为2.4,莫氏硬度为9.3.空气中加热至900℃燃烧,在850℃下与熔融碳酸钠及氢氧化钠完全反应,生成硼酸盐。与水不反应,在高温下,它可与大多金属反应生成对应的硼化物。军事工业中作为抗弹陶瓷材料 高级靶材 涂层及硬化剂 优质合金组分 高技术陶瓷中的组分 金属材料的脱氧剂
General description
It is a gray to black solid powder. Its melting point is 2360℃, boiling point is approximately 2700℃, specific gravity is 2.4, and Mohs hardness is 9.3. It burns when heated to 900℃ in air and reacts completely with molten sodium carbonate and sodium hydroxide at 850℃ to form borates. It does not react with water, but at high temperatures, it can react with most metals to form corresponding borides. In the military industry, it is used as a ballistic ceramic material, high-grade target material, coating and hardening agent, high-quality alloy component, component in high-tech ceramics, and deoxidizer for metallic materials.
Applications
In the military industry, it is used as a ballistic ceramic material, high-grade target material, coating and hardening agent, high-quality alloy component, component in high-tech ceramics, and deoxidizer for metallic materials.