爆炸法合成致密相氮化硼的实验研究

本文分析了致密相氮化硼的动态高压合成条件，用轴对称爆炸装置对石墨型氮化硼进行了一系列加载试验，对回收样品进行了X光衍射试验和扫描电镜观察，结果表明回收样品中黑色部分含有致密相氮化硼。提高试样初始密度，增加炸药量和加限制钢管，明显地有利于致密相氮化硼的生成。

EXPERIMENTAL RESEARCH OF DENSE FORM BORON NITRIDE BY EXPLOSION SYNTHESIS

The conditions of synthesis of dense form BN by dynamic high pressure is analysed. A series of experiments were done on graphitic BN with cylindrical explosion device. Results of X-ray diffraction and SEM on the recovered sample show that dense form BN exists in the black part of the sample. Increasing the density of the original sample, weight of explosive used and use of confined tube will tend to favor the formation of dense form BN.