The role of crystal lattice free volume in nitramine detonation  

作　　者：Svatopluk Zeman Ning Liu Ahmed K. Hussein 

机构地区：[1]Institute of Energetic Materials, Faculty of Chemical Technology, University of Pardubice, CZ-532, 10 Pardubice, Czech Republic [2]Xi'an Modern Chemistry Research Institute, Xi'an, Shaanxi, 710065, China [3]Military Technical College, Kobry Elkobbah, Cairo, Egypt

出　　处：《Defence Technology（防务技术）》2019年第4期519-525,共7页Defence Technology

基　　金：funded partially by Faculty of Chemical Technology at the University of Pardubice by the financial resources of Student’s Grant Project No. SGS_2018_002;partially by the financial support for a six-month traineeship in 2016 for Dr. LIU Ning in the Institute of Energetic Materials at University of Pardubice from the State Administration of Foreign Experts Affairs, Peoples Republic of China

摘　　要：Crystal lattice free volumes,△V,of 22 nitramines introduced into relationships of maximal theoretical crystal densities(TMD),detonation velocities(D)and volume heats of explosives(ρ.Q).Values of all these characteristics increase with an increase in the AV values.However,more realistic dependencies for the TMD and D values are obtained by using correlations with ratio of the intrinsic molecular volume,Vint,to△V(i.e.Vint/△V),whereby the dependence on the D values reflects their similar relationship to a sum of the positive(VS,max)and negative(VS,min)extremes of the molecular surface electrostatic potentials(VS,∑).Also,directly proportional linear relationships are specified between the VS,∑ values on the one hand,and the △V and Vint/△V values,on the other.It is stated that the crystal lattice free volumes might have a similar role in detonation of nitramines as the intermolecular force effect in their molecular crystals(they are as if representative of such forces).Crystal lattice free volumes,△V,of 22 nitramines introduced into relationships of maximal theoretical crystal densities（TMD）,detonation velocities（D）and volume heats of explosives（ρ.Q）.Values of all these characteristics increase with an increase in the AV values.However,more realistic dependencies for the TMD and D values are obtained by using correlations with ratio of the intrinsic molecular volume,Vint,to△V(i.e.Vint/△V),whereby the dependence on the D values reflects their similar relationship to a sum of the positive(VS,max)and negative(VS,min)extremes of the molecular surface electrostatic potentials(VS,∑).Also,directly proportional linear relationships are specified between the VS,∑ values on the one hand,and the △V and Vint/△V values,on the other.It is stated that the crystal lattice free volumes might have a similar role in detonation of nitramines as the intermolecular force effect in their molecular crystals（they are as if representative of such forces）.

关 键 词：Crystal LATTICE DETONATION INITIATION REACTIVITY NITRAMINES 

分 类 号：TJ[兵器科学与技术]