摘要
采用复合化学镀方法制备高致密、高包覆率的银包铜粉,使用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、管式高温烧结炉和数字欧姆表表征了银包铜粉的物相组成、表面形貌、抗氧化性和导电性。结果表明:当在铜粉表面化学镀银时,在镀液中添加适量的纳米Ag制备的银包覆层致密性好、包覆率高,镀覆效果比未加纳米Ag时的好,银包铜粉具有良好的抗氧化性和导电性。
Novel Ag-coatings of high density and high coverage were prepared on Cu-powders via composite electroless plating. Then the phase composition, surface morphology, oxidation resistance and electrical conductivity of the Ag-coated Cu-powder were characterized by means of X-ray diffractometer（XRD）, scanning electron microscopy（SEM）, high temperature oxidation test and digital ohmmeter respectively. The results show that when a proper amount of nano-Ag particulate was added to the plating electrolyte, the chemical deposition of Ag-coating of high density and high coverage can be facilitated on the surface of Cu-powder, besides,such nano-Ag particulate containing electrolyte presents better plating effect than that without adding nano-Ag particulate. Furthermore, the Ag-coated Cu-powder has good oxidation resistance and electrical conductivity.
作者
武博
朱晓云
曹梅
龙晋明
WU Bo;ZHU Xiaoyun;CAO Mei;LONG Jinming(School of Materials Science and Engineering,Kunming University of Science and Technology,Kunming 650093,China;School of Science,Kunming University of Science and Technology,Kunming 650093,China;Kunming Guixinkai Science and Technology Ltd,Kunming 650093,China)
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2018年第10期775-781,共7页
Chinese Journal of Materials Research
基金
云南省科技型中小企业技术创新资金(2017EH016)
昆明理工大学分析测试基金(2016M20152230070)~~
关键词
复合材料
银包铜粉
复合化学镀
高致密性
高包覆率
composite
silver-coated copper powder
composite electroless plating
high density,high coverage
