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含能材料  2014 

显微拉曼光谱评价HMX晶体结晶品质

DOI: 10.3969/j.issn.1006-9941.2014.01.010

Keywords: 结构化学,单质炸药,HMX,晶体品质,显微拉曼光谱

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Abstract:

采用显微拉曼光谱分析技术研究了单晶HMX、球形化HMX和工业品HMX的结晶品质与拉曼光谱特征参数之间的关系。通过对HMX晶体显微拉曼光谱谱峰的对比研究,确定了其拉曼光谱特征峰为951cm-1。对不同品质HMX的特征峰的半峰宽和相对标准偏差进行统计分析,得单晶HMX、球形化HMX和工业品HMX951cm-1处的半峰宽均值分别为15.18,16.71,17.84cm-1,相对标准偏差分别为0.0143%、0.0524%和0.129%,而HMX单晶单点12次测试结果为15.18cm-1和0.0122%。分析三种不同品质HMX晶体的扫描电镜图和折光匹配显微图片,认为单晶HMX品质最好,球形化HMX次之,工业品HMX最差。结果表明,可利用拉曼光谱特征峰的半峰宽和相对标准偏差来评价HMX晶体的结晶品质,特征峰的半峰宽越接近15.19cm-1,相对标准偏差越小,样品的结晶品质越高。

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