有色金属科学与工程2025，Vol.16Issue(2)：245-254,10.DOI:10.13264/j.cnki.ysjskx.2025.02.009
铜银核壳粉末复合导电浆料的制备及其性能研究
Preparation and properties of copper-silver core-shell powder composite conductive paste
摘要
Abstract
In this study,copper-silver core-shell powder with a uniform and dense silver layer was prepared by electroless plating,and the effects of powder content,sintering temperature,and holding time on the properties of conductive slurry were systematically investigated,respectively.Firstly,the electrical conductivity of the paste improved significantly as the copper-silver core-shell powder content increased from 65%to 85%.However,the conductivity improved stably once a certain threshold was reached.Secondly,optimization of the sintering temperatures showed that 700℃was the optimum one.The paste had the lowest square resistance at this temperature yet the best surface morphology.However,excessive sintering temperatures resulted in abnormal grain growth of the powder,negatively affecting the density of the conductive network.Finally,optimization of the holding time showed that 15 minutes provided the best curing effect,making the paste the lowest resistivity and the densest conductive network.The results of this research provided a technical approach and theoretical basis for the preparation of high-performance,low-cost conductive pastes.关键词
铜银核壳粉末/导电浆料/烧结温度/保温时间/导电性能Key words
copper-silver core-shell powder/conductive paste/sintering temperature/holding time/electrical conductivity分类
电子信息工程引用本文复制引用
温奇辉,张雪辉,刘柏雄,曾龙飞,杨斌..铜银核壳粉末复合导电浆料的制备及其性能研究[J].有色金属科学与工程,2025,16(2):245-254,10.基金项目
江西省重大科技研发资助项目(20223AAG01009) （20223AAG01009）
国家自然科学基金资助项目(52361021) （52361021）
