摘要
为获得性能良好的镀镍铝粉,采用置换还原法在铝粉表面镀镍,制备了镀镍铝粉。通过扫描电子显微镜、能谱仪、X射线衍射仪对镀镍铝粉的微观形貌及成分进行了表征,并采用松装密度测试仪、振实密度测试仪及直流电阻测试仪对其松装密度、振实密度和压实电阻率进行测试。结果表明:当置换温度为70℃,镍盐和还原剂质量浓度均为60 g/L时,制备的镀镍铝粉包覆完整、铝镍界面结合紧密,镍含量为75.23%、松装密度为2.179 g/cm3、振实密度为2.547 g/cm3、压实电阻率可达10.6 mΩ·cm。
In order to get good properties of nickel-plated aluminum powder,the nickel-plated aluminum powder was prepared by displacement reaction on the surface of the aluminum powder.The morphology and composition of the nickel-plated aluminum powder was characterized by scanning electron microscope,energy dispersion spectrometer and X-ray diffraction spectrometer.The apparent density,the tap density and pressure of the nickel-plated aluminum powder were tested by an apparent density tester,a tap density tester and a DC resistance tester.The results showed that when the single displacement temperature was 70℃and the concentration of nickel salt and reductant was 60 g/L,the nickel-plated aluminum powder was coated completely and closely.The nickel content of the nickel-plated aluminum powder was 75.23%,the apparent density and tap density were 2.179 g/cm3 and 2.547 g/cm3,respectively.The compaction resistivity could reach 10.6 mΩ·cm.
作者
赵文奇
苏晓磊
刘毅
卢琳琳
ZHAO Wenqi;SU Xiaolei;LIU Yi;LU Linlin(School of Materials Science and Engineering, Xi’an Polytechnic University, Xi’an 710048, China)
出处
《西安工程大学学报》
CAS
2021年第2期60-65,共6页
Journal of Xi’an Polytechnic University
基金
陕西省重点研发计划项目(2020GY-035)
陕西省教育厅自然科学专项(20JK0650)。
关键词
置换还原法
镀镍铝粉
松装密度
振实密度
压实电阻率
single displacement-reduction method
nickel-plated aluminum powder
apparent density
tap density
compaction resistivty
