设计了4种以HMX为主炸药的挤注炸药(ECX)炸药配方,采用φ25 mm和φ50 mm 2种装药直径的圆筒试验分别对添加含能增塑剂和惰性增塑剂的两种挤注炸药进行做功能力研究.研究结果表明:含能增塑剂FM-1对ECX有显著的能量贡献;在相同主炸药含量(...设计了4种以HMX为主炸药的挤注炸药(ECX)炸药配方,采用φ25 mm和φ50 mm 2种装药直径的圆筒试验分别对添加含能增塑剂和惰性增塑剂的两种挤注炸药进行做功能力研究.研究结果表明:含能增塑剂FM-1对ECX有显著的能量贡献;在相同主炸药含量(含HMX为88%)下,含FM-1为9.5%的ECX-05较含惰性增塑剂的ECX-02比动能提高22%～23%,优于国外同类型ECX(EX-08-EL)的水平,其加速金属能力与含HMX95.5%的压装PBX炸药(LX-14)相近.展开更多
设计了2种以HMX为主炸药的挤注炸药(ECX)配方,采用25 mm和50 mm 2种装药直径的圆筒试验分别对添加含能增塑剂和惰性增塑剂的2种ECX进行做功能力研究,通过DYNA/2D有限元流体动力学数值模拟,确定了2种ECX爆轰产物JWL状态方程参数.结果表明...设计了2种以HMX为主炸药的挤注炸药(ECX)配方,采用25 mm和50 mm 2种装药直径的圆筒试验分别对添加含能增塑剂和惰性增塑剂的2种ECX进行做功能力研究,通过DYNA/2D有限元流体动力学数值模拟,确定了2种ECX爆轰产物JWL状态方程参数.结果表明,采用含能增塑剂是提高ECX炸药做功能力的有效方法.展开更多
Ligand engineering based on a closo-B_(12)-cage has been practiced in this work to design a series of stable gas-phase dianions[B_(12)(ECX)_(12)]^(2-)(E=N,P,and As;X=O,S,and Se)via ab initio calculations.The calculate...Ligand engineering based on a closo-B_(12)-cage has been practiced in this work to design a series of stable gas-phase dianions[B_(12)(ECX)_(12)]^(2-)(E=N,P,and As;X=O,S,and Se)via ab initio calculations.The calculated second electron affinities ranging from 1.2 to 3.4 eV indicate that these dianions are electronically stable against electron auto-detachment.Their electronic structures were analyzed based on molecular orbitals and natural bond orbitals.We found that in these designer dianions,the ECX ligands bind the B_(12)-cage via B-E covalent interactions.We simulated the photoelectron spectra of these dianions and discussed the potential application of[B_(12)(NCX)_(12)]^(2-)(X=O,S,and Se)salts as electrolytes in Li-or Mg-ion batteries.展开更多
文摘设计了4种以HMX为主炸药的挤注炸药(ECX)炸药配方,采用φ25 mm和φ50 mm 2种装药直径的圆筒试验分别对添加含能增塑剂和惰性增塑剂的两种挤注炸药进行做功能力研究.研究结果表明:含能增塑剂FM-1对ECX有显著的能量贡献;在相同主炸药含量(含HMX为88%)下,含FM-1为9.5%的ECX-05较含惰性增塑剂的ECX-02比动能提高22%～23%,优于国外同类型ECX(EX-08-EL)的水平,其加速金属能力与含HMX95.5%的压装PBX炸药(LX-14)相近.
文摘设计了2种以HMX为主炸药的挤注炸药(ECX)配方,采用25 mm和50 mm 2种装药直径的圆筒试验分别对添加含能增塑剂和惰性增塑剂的2种ECX进行做功能力研究,通过DYNA/2D有限元流体动力学数值模拟,确定了2种ECX爆轰产物JWL状态方程参数.结果表明,采用含能增塑剂是提高ECX炸药做功能力的有效方法.
基金support from the National Key Research and Development Program(Grant No.2019YFA0210600)the National Natural Science Foundation of China(22003048,U1866203,92066207)the Natural Science Foundation of Shaanxi Province(2021JLM-27,2020JZ-03).
文摘Ligand engineering based on a closo-B_(12)-cage has been practiced in this work to design a series of stable gas-phase dianions[B_(12)(ECX)_(12)]^(2-)(E=N,P,and As;X=O,S,and Se)via ab initio calculations.The calculated second electron affinities ranging from 1.2 to 3.4 eV indicate that these dianions are electronically stable against electron auto-detachment.Their electronic structures were analyzed based on molecular orbitals and natural bond orbitals.We found that in these designer dianions,the ECX ligands bind the B_(12)-cage via B-E covalent interactions.We simulated the photoelectron spectra of these dianions and discussed the potential application of[B_(12)(NCX)_(12)]^(2-)(X=O,S,and Se)salts as electrolytes in Li-or Mg-ion batteries.
