Li Chongyang, Li Hui, Zong He-Hou, Huang Yongli, Gozin Michael, Sun Chang Q, Zhang Lei
Key Laboratory of Low-dimensional Materials and Application Technology (Ministry of Education), School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China; CAEP Software Center for High Performance Numerical Simulation, Beijing 100088, China.
Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, Xi'an 710065, China; School of Chemistry, Faculty of Exact Science, Tel Aviv University, Tel Aviv 69978, Israel.
iScience. 2020 Mar 27;23(3):100944. doi: 10.1016/j.isci.2020.100944. Epub 2020 Feb 26.
Performance-stability contradiction of high-energy-density materials (HEDMs) is a long-standing puzzle in the field of chemistry and material science. Bridging the gap that exists between detonation performance of new HEDMs and their stability remains a formidable challenge. Achieving optimal balance between the two contradictory factors is of a significant demand for deep-well oil and gas drilling, space exploration, and other civil and defense applications. Herein, supercomputers and latest quantitative computational strategies were employed and high-throughput quantum calculations were conducted for 67 reported HEDMs. Based on statistical analysis of large amounts of physico-chemical data, in-crystal interspecies interactions were identified to be the one that provokes the performance-stability contradiction of HEDMs. To design new HEDMs with both good detonation performance and high stability, the proposed systematic and comprehensive strategies must be satisfied, which could promote the development of crystal engineering of HEDMs to an era of theory-guided rational design of materials.
高能量密度材料(HEDMs)的性能-稳定性矛盾是化学和材料科学领域长期存在的难题。弥合新型高能量密度材料的爆轰性能与其稳定性之间存在的差距仍然是一项艰巨的挑战。在这两个相互矛盾的因素之间实现最佳平衡,对于深井油气钻探、太空探索以及其他民用和国防应用而言有着重大需求。在此,我们使用了超级计算机和最新的定量计算策略,对67种已报道的高能量密度材料进行了高通量量子计算。基于对大量物理化学数据的统计分析,确定晶体内物种间相互作用是引发高能量密度材料性能-稳定性矛盾的因素。为了设计出具有良好爆轰性能和高稳定性的新型高能量密度材料,必须满足所提出的系统且全面的策略,这能够将高能量密度材料的晶体工程发展推进到材料理论指导下的理性设计时代。