摘要
提出了一种制备锗铜复合材料的新方法,采用掺杂锗与铜作为电极材料,利用脉冲放电法在两极材料表面产生瞬时高温及局部微爆炸,使两极熔融态材料在爆轰波冲击作用下向极间飞溅并聚合形成锗铜复合微球。通过有限元方法对材料温度场及锗铜复合微球的形成过程进行仿真模拟并分析其形成机理。通过实验制备出1~10μm的锗铜复合微球,并获得微球尺寸与放电能量之间的相互关系,验证了仿真分析结果。
This article provided a new method for preparing Ge-based composite materials.The doped germanium and copper(Cu)were selected as raw materials,utilizing the pulse discharge method to generate instantaneous high temperature and local micro-explosion on the surface of the two poles material.Under the impact of the detonation wave,the two-pole molten material splashes and polymerizes between the electrodes would form Ge/Cu composite microspheres.The temperature field of the material and the formation process of the Ge/Cu composite microspheres were simulated by the finite element method,and the formation mechanism of the Ge/Cu microspheres had been analyzed.The Ge/Cu composite microspheres were successfully prepared and the size of those microspheres was 1μm to 10μm.The correlation between the size of the microspheres and the discharge energy was obtained and the results of the simulation were verified.
作者
程鹍
蒯源
沈鸿烈
田宗军
何赛华
洪捐
CHENG Kun;KUAI Yuan;SHEN Honglie;TIAN Zongjun;HE Saihua;HONG Juan(College of Mechanical Engineering,Yancheng Institute of Technology,Yancheng 224051,China;College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;College of Mechanical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Jiangsu Linyang Energy Co.,Ltd.,Nantong 226200,China)
出处
《电加工与模具》
2021年第6期19-25,51,共8页
Electromachining & Mould
基金
国家自然科学基金青年基金资助项目(51805466)
中国博士后科学基金面上资助项目(2018M630553)。
关键词
锗铜复合微球
脉冲放电
形成机理
有限元法
锂离子电池
Ge/Cu composite microspheres
pulsed electrical discharge
formation mechanism
finite element method
lithium ion battery
