碳类粒子对固体推进剂束流发散角度影响的实验研究

Experimental study on effects of carbon dopants on the beam divergence angles of solid propellants

以石墨烯和碳粉两种碳类粒子作为掺杂剂定向改性固体推进剂,借助高速摄影技术和自搭建的束流发散角度测量系统,对比并分析不同掺杂比例和工作条件对改性推进剂束流发散角度的影响,确定了掺杂粒子的最优掺杂比例和工作条件。结果表明,石墨烯和碳粉的最优掺杂比例均为7%,且石墨烯的束流发散角度更小,生成稳定等离子体流的响应时间更短。同时,石墨烯更适配于小激光能量供给下的工作条件,而碳粉更适配于大激光能量供给下的工作条件。

Two kinds of carbon doped particles,graphene and toner,were used to directionally modify solid propellant.The influence of different doping ratios and working conditions on the divergence angle of the modified propellant was compared and analyzed by high-speed photography technology and a self-built beam divergence angle measurement system,so as to determine the optimal doping ratios and working conditions of the doped particles.It is found that the optimal doping ratio of graphene and toner is 7%,and the beam divergence angle of graphene is smaller,and the response time of generating stable plasma flow is shorter.At the same time,graphene is more suitable for the working conditions under the small laser energy supply,and toner is more suitable for the working conditions under the large laser energy supply.