X射线粉末衍射测定炸药晶体的线膨胀系数和理论密度  

Measurement of CTE and Theoretical Density of Explosive Crystal by XRD

作　　者：孙杰[1] 张浩斌[1] 舒小燕[1] 刘渝[1] 刘晓锋[1] 康彬[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621900

出　　处：《含能材料》2010年第5期510-513,共4页Chinese Journal of Energetic Materials

基　　金：国防973(61383)项目;国家自然科学基金项目(批准号:10979037);中国工程物理研究院科学技术发展基金(批准号:2009A0203010)

摘　　要：炸药晶体的线膨胀系数和理论密度是影响其使用性能的重要参数,X射线粉末衍射是测定炸药线膨胀系数和理论密度的重要手段。本文介绍了X射线粉末衍射测定炸药线膨胀系数和理论密度的方法和原理,结合密度梯度管法得到的RDX、HMX两种炸药晶体的实测结果说明了该方法的可靠性和准确性,并提出应加强X射线衍射在炸药晶体研究中的应用。Coefficient of thermal expansion （CTE） and theoretical density of explosive crystal are significant properties,which affect the performance of explosives largely. X-Ray powder diffraction （XRD） is an important method to measure the CTE and theoretical density of explosives. The methods and principles for measuring the two parameters by XRD were described, and the experimental results of RDX and HMX explosive crystals obtained by density gradient method verified the reliability and accuracy of the method. It is proposed that the application of X-ray diffraction should be strengthened in research of explosive crystal.

关 键 词：物理化学 X射线粉末衍射 线膨胀系数 理论密度 RIETVELD精修 炸药晶体 

分 类 号：TQ560.1[化学工程—炸药化工]