煅烧温度对化学镀银铜粉性能的影响  

Effect of calcination temperature on properties of electroless silver-plated copper particles

作　　者：林佳丽 张应 曹梅[1] 龚楚良 LIN Jiali;ZHANG Ying;CAO Mei;GONG Chuliang(College of Science,Kunming University of Science and Technology,Kunming 650050,China)

机构地区：[1]昆明理工大学理学院,云南昆明650050

出　　处：《电镀与涂饰》2020年第19期1348-1351,共4页Electroplating & Finishing

基　　金：大学生创新创业训练计划项目(201710674016)。

摘　　要：对铜粉化学镀银得到银包铜粉。研究了镀后煅烧温度对银包铜粉颜色、抗氧化性、导电性、形貌和相结构的影响。结果表明,所得银包铜粉接近银白色,银层包覆完整。随煅烧温度升高,银包铜粉的质量增加率和电阻增大,颜色加深,氧化程度加重。但即使经600℃煅烧,银包铜粉的导电性依旧良好,说明其抗氧化性良好,能够在较高温度下使用。Silver-coated copper particles were prepared by electroless silver plating on copper particles. The effect of calcination temperature on the color, oxidation resistance, conductivity, morphology, and phase structure of silver-coated copper particles was studied. The results showed that the silver-coated copper particles were nearly silvery white and had a complete silver coating. The increase of calcination temperature increased the mass gain rate and electrical resistance of silver-coated copper particles increased, and made their color become darker, indicating the more serious oxidation of silver-coated copper particles. However, the silver-coated copper particles still had excellent conductivity even when calcined at 600 ℃, indicating that they have good oxidation resistance and can be used at high temperatures.

关 键 词：银包铜粉 化学镀 煅烧 抗氧化性 导电性 

分 类 号：TQ153.16[化学工程—电化学工业]