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罗国强,吕时俊,李远,胡家念,张建,孙一,沈强.Cu@Ag包覆粉体的SPS烧结及其致密机理研究[J].稀有金属材料与工程(英文),2021,50(1):286~290.[Luo Guoqiang,LvShijun,Li Yuan,Hu Jianian,Zhang Jian,Sun Yi and Shen Qiang.Study on SPS Sintering of Cu @ Ag Coated Powder and Its Dense Mechanism[J].Rare Metal Materials and Engineering,2021,50(1):286~290.]
Study on SPS Sintering of Cu @ Ag Coated Powder and Its Dense Mechanism
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Received:January 16, 2020  
DOI:
Key words: Cu@Ag Electroless plating  Spark plasma sintering Relative density
Foundation item:国家自然科学基金重点项目51932006,国家自然科学基金创新群体项目 51521001,联合基金Grant No. 6141A02022255,湖北省技术创新专项重大项目 2019AFA176,”111“计划
Author NameAffiliation
Luo Guoqiang,LvShijun,Li Yuan,Hu Jianian,Zhang Jian,Sun Yi and Shen Qiang  
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Abstract:
      Cu@Ag coated powder was prepared by electroless plating and sintered by spark plasma sintering technology (SPS). The scanning electron microscope and transmission electron microscope were used to study the microstructure of the coated powder and sintered samples. The phases and densities of the samples were characterized. The results showed that there is obvious coating on the surface of Cu@Ag powder prepared by electroless plating. By using SPS, a high-density Cu-Ag sintered block can be obtained. At 550 ° C, the density reached a maximum of 96.76%. At low temperatures, the necking of nano-silver promotes the sintering; at high temperatures, solid solution between Cu and Ag promotes sintering.