Low carbon/high purity boron nitride
    2.
    发明授权
    Low carbon/high purity boron nitride 失效
    低碳/高纯度氮化硼

    公开(公告)号:US5021371A

    公开(公告)日:1991-06-04

    申请号:US482073

    申请日:1990-02-20

    摘要: Highly pure boron nitride ceramic material, devoid of silicon values and having low carbon content, is prepared by pyrolyzing, under an atmosphere of ammonia, the product of the reaction between (i) at least one B-trihalogeno-borazole having the formula: ##STR1## and (ii) at least one primary amine having the formula:H.sub.2 N--Rin which formulae X is a halogen atom and R is an optionally substituted hydrocarbon radical having from 1 to 6 carbon atoms.

    摘要翻译: 通过在氨气氛下热解(i)至少一种具有下列结构式的β-三卤代 - 硼唑之间的反应产物,制备无纯硅含量低的碳氮化硼陶瓷材料: 和(ii)至少一种具有下式的伯胺:其中式X是卤素原子,R是具有1至6个碳原子的任选取代的烃基。