Method of making metal-porous cathode involves forming a housing from a refractory metal and forming a tungsten sponge
	KRACHKOVSKAIA T M; EMELIANOV A S; ZHURAVLEV S D
	2023-10-09
专利权人	DIGITAL SOLUTIONS RES & PRODN ENTERPRISE (DIGI-Non-standard)
申请日期	2023-10-09
专利号	RU2823125-C1
成果简介	NOVELTY - Invention relates to metal-porous cathodes (MPC) of microwave electronic devices. Method of making a metal-porous cathode involves forming a housing from a refractory metal and forming a tungsten sponge. Tungsten sponge is made by pressing from annealed tungsten powder with addition of powder of polyhedral nanoparticles of fulleroid type of toroidal shape, with subsequent sintering of workpieces in hydrogen medium and impregnation with active substance. Finished sponge is fixed in housing, machined and subjected in turn to process of vacuum annealing, deep ion etching, and ion-plasma coating of platinum group metals is applied. To prepare a mixture for a refractory matrix, an initial unannealed tungsten powder is taken, to which powder of polyhedral nanoparticles of fulleroid type of toroidal shape is added, then the mixture of two powders is mixed in a mill in a drum with jasper balls for 3 hours, after which the mixed powder mixture is annealed in hydrogen medium. USE - Electronic equipment. ADVANTAGE - Invention increases uniformity of distribution of powder of polyhedral nanoparticles of fulleroid type of toroidal shape in the sponge of the cathode. 1 cl, 1 dwg
IPC 分类号	H01J-009/04
国家	俄罗斯
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/20097
专题	中国科学院新疆生态与地理研究所
作者单位	DIGITAL SOLUTIONS RES & PRODN ENTERPRISE (DIGI-Non-standard)
推荐引用方式 GB/T 7714	KRACHKOVSKAIA T M,EMELIANOV A S,ZHURAVLEV S D. Method of making metal-porous cathode involves forming a housing from a refractory metal and forming a tungsten sponge. RU2823125-C1[P]. 2023.

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