Abstract
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
Received:February 06, 2023  
DOI:
中文关键词: 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
英文关键词: metal materials  chemical hydrolysis precipitation method  Mo-Ru powder brazing alloy  powdersize  microstructure  brazing performance
基金项目:
Author NameAffiliation
CHEN Nanguang Sino-Platinum Metals Chemical Yunnan Co.Ltd., Kunming 650106, China 
ZHUANG Dianxiang Yunnan Precious Metal New MaterialHolding Group Co.Ltd., Kunming 650106, China 
LIU Zeguang Kunming Institute of Precious Metals, Kunming 650106, China 
ZHEN Guowei Sino-Platinum Metals Chemical Yunnan Co.Ltd., Kunming 650106, China 
ZUO Yang Sino-Platinum Metals Chemical Yunnan Co.Ltd., Kunming 650106, China 
SHI Honyu Sino-Platinum Metals Chemical Yunnan Co.Ltd., Kunming 650106, China 
LU Yingmeng Sino-Platinum Metals Chemical Yunnan Co.Ltd., Kunming 650106, China 
YANG Jun Sino-Platinum Metals Chemical Yunnan Co.Ltd., Kunming 650106, China 
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中文摘要:
      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。
英文摘要:
      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.
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