摘要
为考察晶体颗粒压制过程的振荡现象,对三类五种RDX晶体颗粒进行了压缩刚度试验,发现压制曲线的振荡特征与单个颗粒凝聚强度有密切关系。定义并测量了破碎阶段的压制曲线振荡幅值,其中重结晶RDX样品的振荡幅值约为2.4 MPa,远高于普通RD X颗粒的1.2 MPa,而高品质D-RDX的振荡幅值为4.4 MPa,表明D-RDX破碎的许用应力最高,其晶体颗粒凝聚强度得到显著提高。研究表明利用压缩刚度法分析颗粒品质特征还需考虑曲线振荡幅值,同时也表明高品质的晶体颗粒不易通过压制获得较理想的破碎状态。
In order to investigate the fluctuation phenomena of RDX crystalline particles subject to pressing,the compression stiffness tests （CST） were conducted for five types RDX crystalline particle ensembles from three sources and it is found that the fluctuation of the compression relates closely to the coherence strength of single particle of RDX. The measured fluctuation amplitudes of recrystallized is about 2.4 MPa,which is much higher than that of commonly used RDX, namely 1,2 MPa,and D-RDX bears the highest fluctuation amplitude of 4.4 MPa,it means that recrystallized RDX （D-RDX） has a maximum allowable failure stress and its quality has been well improved compared to the rest of the samples. This study shows that when using CST to evaluate the quality, the fluctuation should be considered carefully.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2010年第5期483-486,共4页
Chinese Journal of Energetic Materials
基金
国家自然科学基金(10832003)
关键词
凝聚态物理
RDX
压缩刚度
振荡
condensed matter physics
RDX
compression stiffness
fluctuation
