摘要
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。
The crystal morphologies of α- and β-HMX were predicted by using attachment energy (AE) and Bravais-Friedel-Donnary-Harker (BFDH) models. The important crystal surfaces are (020) , (011) , (10-2) , ( 11-1 ) , (100) for β-HMX and (040) , (220) and (111) for α-HMX. The analyses of the crystal surface structures show that (100) and (111) are greatly polar,and (020),(011),(11-1) and (220) are polar,while (10-2) and (040) are non-polar. It can be predicted that (100) and (111) are the important crystal surfaces in the proton solvents with strong polarity,and the appearance area of (020) , (011 ) , (11-1 ) and (220) is increased,and the (10-2) and (040) surfaces diminishes or disappeares ,while the contrary cases occurs in the non-polar solvents.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2009年第6期655-659,共5页
Chinese Journal of Energetic Materials
基金
西南科技大学重点科研项目(053118)
关键词
物理化学
HMX
晶体形貌
AE模型
BFDH模型
表面结构
physical chemistry
HMX
crystal morphology
attachment energy (AE) model
Bravais-Friedel-Donnary-Harker (BFDH) model
surface structure