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近代科学技术正走向极端参数,对材料提出了新的更为严格的要求。随着宇航、原子能等工业的迅速发展,加速了特种无机材料的研制与应用。无机非金属难熔化合物,特别是无氧二元硼化物、硅化物、碳化物、氮化物是极有前途的新型高温材料。难熔化合物的熔点一般均在2000～3000℃,有的甚至高达近4000℃,这类材料最突出的性能是既能耐高温,又能在特殊侵蚀介质中抗腐蚀。六十年代发展起来的氮化硼是一种无机非金属难熔氮化物,它具有耐高温,抗腐蚀,高润滑,防辐射,既是电绝缘体又是热导体等优异性能。我国研制生产氮化硼始于七十年代初,近几年来在氮化硼制品方面研究也取得很大成绩,产品正在有关科研及工业部门逐渐获得应用。
Modern science and technology are moving toward extreme parameters, the material proposed new and more stringent requirements. With the rapid development of industries such as aerospace and atomic energy, the development and application of special inorganic materials have been accelerated. Inorganic non-metallic refractory compounds, especially anaerobic binary boride, silicide, carbide, nitride is a promising new high-temperature materials. The melting point of refractory compounds are generally 2000 ~ 3000 ℃, and some even up to nearly 4000 ℃, the most prominent performance of these materials is both high temperature, but also in special media corrosion resistance to corrosion. Boron nitride developed in the 1960s is an inorganic non-metallic refractory nitride, which has excellent properties of high temperature resistance, corrosion resistance, high lubrication and radiation protection, and is both an electrical insulator and a heat conductor. The development and production of boron nitride in our country started in the early 1970s. In recent years, research on boron nitride products has also made great achievements. Products are gradually being applied in relevant scientific research and industrial departments.