周增林,何学良,李艳,惠志林,谢元锋.扩散阴极用多孔钨基体材料的评述[J].稀有金属材料与工程,2019,48(7):2386~2392.[Zhou Zenglin,He Xueliang,Li Yan,Hui Zhilin,Xie Yuanfeng.Review on the Porous Tungsten Matrix Materials of Dispenser Cathodes[J].Rare Metal Materials and Engineering,2019,48(7):2386~2392.]
扩散阴极用多孔钨基体材料的评述
投稿时间:2018-01-27  修订日期:2018-03-08
中文关键词:  扩散阴极  多孔钨基体  熔渗铜  不封装的热等静压  深冷加工
基金项目:国家重点研发计划项目(2017YFB0306000)、进口替代专项
中文摘要:
      本文梳理了扩散阴极对钨基体材料孔隙特性的设计要求。以其制备为主线,介绍了钨粉预处理、钨粉成形、钨压坯烧结、多孔钨渗(去)铜、钨骨架的热等静压及深冷加工;最后总结了钨基体材料的性能表征手段。阴极用钨粉等离子球化、挤压或注射成形是未来的发展趋势;钨骨架的热等静压改性有助于高可靠和长寿命;多孔钨的深冷加工是一种可持续的先进加工方法,有望实现钨基体的短流程制造。
Review on the Porous Tungsten Matrix Materials of Dispenser Cathodes
英文关键词:dispenser cathodes  porous tungsten matrix  copper infiltration  capsule-free HIP  cryogenic machining
英文摘要:
      The paper first teases out the pore design requirements of porous tungsten matrix materials (PTMM). Secondly, the preparation of PTMM as the main line is introduced, including the process of tungsten powder pretreatment and forming, tungsten compact sintering, copper infiltration and removal, porous tungsten HIP and cryogenic machining. Finally, the test methods of properties of PTMM are summarized. Tungsten powders plasma spheroidization, tungsten compact extrusion and injection moulding are the future for the dispenser cathodes matrix. Porous tungsten capsule-free HIP contributes to high-reliability and long-life of dispenser cathodes. Porous tungsten cryogenic machining, an advanced sustainable process, is capable of short process manufacturing for porous tungsten matrix of dispenser cathodes.
作者单位E-mail
周增林 北京有色金属研究总院工程技术研究院 zenglinzhou@163.com 
何学良 北京有色金属研究总院工程技术研究院 18801269815@163.com 
李艳 北京有色金属研究总院工程技术研究院  
惠志林 北京有色金属研究总院工程技术研究院  
谢元锋 北京有色金属研究总院工程技术研究院  
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