贵金属2024，Vol.45Issue(1) ：23-27.

化学沉淀法制备Mo-Ru钎料粉末的组织结构及钎焊性能研究

Microstructure and brazing performance of Mo-Ru alloyed powder prepared by hydrolysis-precipitation method

陈南光 庄滇湘 刘泽光 郑国伟 左杨 施宏宇 卢应孟 杨军
贵金属2024，Vol.45Issue(1) ：23-27.
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化学沉淀法制备Mo-Ru钎料粉末的组织结构及钎焊性能研究

Microstructure and brazing performance of Mo-Ru alloyed powder prepared by hydrolysis-precipitation method

陈南光 1庄滇湘 2刘泽光 3郑国伟 1左杨 1施宏宇 1卢应孟 1杨军1
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作者信息

  • 1. 贵研化学材料(云南)有限公司,昆明 650106
  • 2. 云南省贵金属新材料控股集团股份有限公司,昆明 650106
  • 3. 昆明贵金属研究所,昆明 650106
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摘要

采用水合三氯化钌和钼酸铵在红外灯下化学共沉淀反应、通氢还原制备Mo-Ru粉末钎料.利用扫描电镜、能谱仪、X射线衍射及差热分析等技术,研究粉末的形貌、成分、熔化温度、钎料与钼片、多孔钨的钎焊性能.结果表明:用化学沉淀法制备粉末大部分是MoRu化合物颗粒、少量Mo、Ru单质粉末及微量SiO2,粉末粒度D80≤6 μm,熔化后与钼片及阴极多孔钨基体浸润性良好,熔化温度为 1959.7～1969.6℃,与相图上MoRu共晶钎料的熔化温度接近.

Abstract

Mo-Ru alloyed powder was prepared from ruthenium chloride hydrate and ammonium molybdate by using hydrolysis-precipitation method,and then the powder was characterized by scanning electron microscope(SEM)and X-ray diffraction(XRD).The particle distribution,melting point and brazing performance were also measured.The results showed Mo-Ru powder was mainly made up of Mo-43Ru alloy but it also contained a small amount of unalloyed Mo and Ru as well as trace SiO2.The size distribution parameter D80 of Mo-Ru powder was determined to be≤6 μm and good wetting was observed on Mo thin piece and W column.The melting temperature was 1959.7 to 1969.6℃,close to the value of the eutectic MoRu on the phase diagram.

关键词

金属材料/化学沉淀法/Mo-Ru钎料粉末/粉末粒度/显微组织/钎焊性能

Key words

metal materials/chemical hydrolysis precipitation method/Mo-Ru powder brazing alloy/powdersize/microstructure/brazing performance

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出版年

2024
贵金属
中国有色金属学会 昆明贵金属研究所

贵金属

CSTPCD北大核心
影响因子：1.261
ISSN：1004-0676
参考文献量9
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