强激光与粒子束2025，Vol.37Issue(4)：30-36,7.DOI:10.11884/HPLPB202537.240288
不同型号的石墨耐强流电子束轰击性能的研究
Study on resistance to high current electron beam bombardment of different types of graphite
摘要
Abstract
In this paper,four typical types of high purity graphite and their titanium carbide coating modified materials were tested as anodes in high current electron beam diodes.The results show that the currents of the diodes were obviously different when the graphite anodes were under electron beam bombardment with voltage 860 kV,current 11 kA and pulse width 40 ns.The current curve for graphite 4#was normal even after interaction of 167 electron pulses while the other graphite current curves showed different degrees of tail erosion.The ablative experiments of titanium carbide coating on graphite further verified the difference of the graphite,indicating that the thermal conductivity of graphite has an important effect on its ablative resistance.The higher the thermal conductivity of graphite,the lower the degree of recrystallization of titanium carbide,the better the corrosion resistance of graphite.Therefore,graphite 4#has an excellent resistance to electron beam bombardment and would be promising for application as collector materials in relativistic traveling wave tubes.关键词
收集极/石墨/电子束轰击/碳化钛涂层/热导率Key words
collector/graphite/electron beam bombardment/titanium carbide coating/thermal conductivity分类
矿业与冶金引用本文复制引用
程军,刘文元,吴平,柯昌凤,霍艳坤,何亚姣,孙钧..不同型号的石墨耐强流电子束轰击性能的研究[J].强激光与粒子束,2025,37(4):30-36,7.基金项目
先进高功率微波技术重点实验室基金资助项目(Z091230302) （Z091230302）
