不同类型碳源爆轰合成聚晶金刚石特性研究  

Study on Characteristics of Detonation Polycrystalline Diamond Synthesized with Different Carbon Sources

作　　者：张世潇 仝毅[1] 商士远 黄风雷[1] ZHANG Shixiao;TONG Yi;SHANG Shiyuan;HUANG Fenglei(State Key Laboratory of Explosive Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《兵器装备工程学报》2020年第12期192-196,共5页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金项目(11572047)。

摘　　要：以干馏秸秆和石墨为外加碳源,选用8701炸药提供能量,采用直接爆轰法合成金刚石。爆轰产物采用浓硫酸和高氯酸联合氧化法提纯,使用SEM、XRD和激光粒度仪对表征其性能。结果表明:以干馏秸秆为外加碳源,可以获得颗粒度较小,晶粒尺寸更大、晶格更加完整的聚晶金刚石,同时也有石墨相生成;干馏秸秆和石墨爆轰合成的金刚石晶粒尺寸有明显差别,颗粒度分布不同,且在粒径尺寸较大的颗粒表面附着有很多纳米尺度小颗粒;干馏秸秆与石墨爆轰合成聚晶金刚石转化机理类似。The dry distillation straw and the graphite were used as external carbon sources,and 8701 explosive was used to provide energy,and diamond was synthesized by direct detonation method.The detonation products were purified by combined oxidation of concentrated sulfuric acid and perchloric acid,and they were characterized by SEM,XRD and laser particle size analyzer.The results show that polycrystalline diamonds obtained from the dry distillation straws have properties of smaller particle size and larger grain size and more complete crystal lattice,and with some graphite phase formation.The grain sizes of the diamonds are significantly different between from the dry distillation straws and the graphite.Their particle size distribution are different also,and in which many nanoscale particles attached to the surface of the larger-sized ones.The Detonation Polycrystalline Diamond conversion mechanism of the dry distillation straw with the graphite is similar.

关 键 词：聚晶金刚石 直接爆轰法 性能表征 晶粒尺寸 颗粒度 

分 类 号：TJ45[兵器科学与技术—火炮、自动武器与弹药工程] TQ56[化学工程—炸药化工]