马赫反射效应在炸药爆轰合成金刚石中的应用

USING MACH REFLECTION EFFECT IN SYNTHESIS OF ULTRAFINE DIAMOND BY DETONATION WAVE METHOD

在爆轰法合成超细金刚石中利用马赫效应提高金刚石得率。用Ｗｈｉｔｈａｍ方法计算马赫杆上的爆轰参数。实验采用中间为ＴＮＴ药柱，外边包裹ＴＮＴ／ＲＤＸ３０／７０的装药，在爆炸罐氮气介质中爆炸，超细金刚石得率为６％，包裹盐后得率超过１０％。

This paper proposes a method to use Mach effect in explosive detonation to enhance the yield of ultrafine diamond.The detonation parameters on Mach rod were computed by Whitham method.The cylindric charge in experiment was TNT wrapped with TNT/RDX(30/70) charges.Ultrafine diamond can be obtained from the soot of detonation product in a nitrogen filled chamber,the yield is 6%;if this charge is wrapped with salt,the yield can be more than 10%.