最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
擴散陰極用多孔鎢基體材料的評述
作者:
作者單位:

北京有色金屬研究總院工程技術(shù)研究院

作者簡介:

通訊作者:

中圖分類號:

TG 146.4

基金項目:

國家重點研發(fā)計劃項目（2017YFB0306000）、進口替代專項


Review on the Porous Tungsten Matrix Materials of Dispenser Cathodes
Author:
Affiliation:

Institute of Engineering and Technology,General Research Institute for Nonferrous Metals

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    本文梳理了擴散陰極對鎢基體材料孔隙特性的設(shè)計要求。以其制備為主線，介紹了鎢粉預處理、鎢粉成形、鎢壓坯燒結(jié)、多孔鎢滲（去）銅、鎢骨架的熱等靜壓及深冷加工；最后總結(jié)了鎢基體材料的性能表征手段。陰極用鎢粉等離子球化、擠壓或注射成形是未來的發(fā)展趨勢；鎢骨架的熱等靜壓改性有助于高可靠和長壽命；多孔鎢的深冷加工是一種可持續(xù)的先進加工方法，有望實現(xiàn)鎢基體的短流程制造。

    Abstract:

    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.

    參考文獻
    相似文獻
    引證文獻
引用本文

周增林,何學良,李艷,惠志林,謝元鋒.擴散陰極用多孔鎢基體材料的評述[J].稀有金屬材料與工程,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.]
DOI：10.12442/j. issn.1002-185X.20180107

復制
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2018-01-27
  • 最后修改日期:2018-03-08
  • 錄用日期:2018-03-29
  • 在線發(fā)布日期: 2019-08-01
  • 出版日期: