Impact Sensitivity in Respect of the Crystal Lattice Free Volume and the Characteristics of Plasticity of Some Nitramine Explosives  

作　　者：Svatopluk Zeman Marcela JUNGOV Qi-Long YAN 

机构地区：[1]Institute of Energetic Materials,Faculty of Chemical Technology,University of Pardubice

出　　处：《含能材料》2015年第12期1186-1191,共6页Chinese Journal of Energetic Materials

摘　　要：The relationship between the crystal lattice free volume,ΔV,and impact sensitivity,E_(dr),of ten nitramines has been analyzed. It was found that this relationship is not uniquely determined,i. e. it is not given only by their own ΔV values but fundamentally by the type and intensity of the intermolecular forces in the nitramine crystals. Also,relationships between the E_(dr)values,on the one hand,and bulk modulus,K,and shear modulus,G,on the other,have been the subject of discussion not only for pure cyclic nitramines but also for their PBXs,bonded by a poly-fluoro binder. The closest linear correlation exists between the E_(dr)values and dimensionless K·G^(-1) ratio which indicates the plasticity range. A similar relationship is valid also for the ΔV values. Relationships of the E_(dr) and / or ΔV values with the shear modulus or to the K·G^(-1) ratio reflect an unusual behavior of ε-HNIW to which the published morphological instability of this particular HNIW version might also be related.The relationship between the crystal lattice free volume, A V, and impact sensitivity, Edr, of ten nitramines has been analyzed. It was found that this relationship is not uniquely determined, i.e. it is not given only by their own AV values but fundamentally by the type and intensity of the intermolecular forces in the nitramine crystals. Also, relationships between the Edr values, on the one hand, and bulk modulus, K, and shear modulus, G, on the other, have been the subject of discussion not only for pure cyclic nitramines but also for their PBXs, bonded by a poly-fluoro binder. The closest linear correlation exists between the Edr values and dimensionless K ~ G-~ ratio which indicates the plasticity range. A similar relationship is valid also for the AV values. Relationships of the Edr and/or AV values with the shear modulus or to the K G-1 ratio reflect an unusual behavior of ε-HNIW to which the published morphological instability of this particular HNIW version might also be related.

关 键 词：爆破器料 含能材料 烟火器材 材料学 

分 类 号：TQ560.1[化学工程—炸药化工]