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具有高能量和低灵敏度的CL-20/HMX共晶的颗粒大小可控制的制备

SongYuChen Ma¹, Tao Liu¹, DeQi Wang¹

¹School of Chemistry and Chemical Engineering, National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.

|May 12, 2025

概括

研究人员开发了一种新方法来控制CL-20/HMX共晶体的晶体大小. 更大的CL-20/HMX共晶体表现出更好的热稳定性和降低的灵敏度.

科学领域:

材料科学材料科学材料科学
晶体学晶体学是指结晶学.
化学工程是化学工程的重要组成部分.

背景情况:

控制晶体大小和形态对于像CL-20/HMX共晶体这样的高能材料至关重要.
无法控制的颗粒大小导致CL-20/HMX共晶制剂的质量问题.

研究的目的:

开发一种新的方法来生产高质量的CL-20/HMX共晶体,其形态粒度具有明确的定义.
系统地优化控制共结晶的参数.

主要方法:

同结晶的溶剂/不溶剂方法.
精确控制混合效率和溶液超和度.
系统优化溶剂成分,溶剂/不溶剂比率,温度和速率.

主要成果:

成功制备了三种不同的圆角形CL-20/HMX共晶样本,其颗粒大小分布均 (D50值为20,63和130微米).
SEM,XRD和微CT分析证实了光滑的表面,规则的形状,高晶度和减少的内部缺陷.
与较小粒度的同晶体相比,较大粒度的同晶体显示出增强的热稳定性和降低的灵敏度.

结论:

开发的方法可以精确控制CL-20/HMX共晶形态和粒度大小.
较大的CL-20/HMX共晶体具有卓越的晶体完美性,热稳定性和降低的灵敏度.
这种进步为更高质量的能量材料提供了途径.

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