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含能材料  2009 

HMX晶体形貌预测

DOI: 10.3969/j.issn.1006-9941.2009.06.004

Keywords: 物理化学,HMX,晶体形貌,AE模型,BFDH模型,表面结构

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Abstract:

采用附着能(AE)和BFDH(Bravais-Friedel-Donnary-Harker)模型预测了HMX的β和α晶型的晶体形貌,确定了形态学上重要的生长晶面,β-HMX为(020)、(011)、10-2)、(11-1)、100),α-HMX为(040)、(220)和(111)。各个晶面的表面结构分析表明,(100)和(111)为强极性晶面,(020)、(011)、(11-1)以及(220)为极性晶面,而(10-2)和(040)为非极性晶面。据此可预测在强极性的质子溶剂中,(100)和(111)将成为形态学上重要的晶面,(020)、(011)、(11-1)以及(220)的显露面可能增加,(10-2)和(040)面则将变小甚至消失,而在非极性溶剂中则可能刚好相反。

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