超细镍粉中金属非金属杂质元素的化学形态分析及其对性能的影响

Chemical speciation analysis of metal and non-metal impurity elements in ultrafine nickel powder and their influence on properties

本研究旨在深入探讨杂质元素对超细镍粉性能的影响,为优化其制备工艺和提升应用性能提供理论依据。实验通过引入不同种类和含量的杂质元素,系统研究了它们对镍粉电导率、硬度、延展性、化学稳定性及耐腐蚀性的作用机制。结果表明,金属杂质元素导致镍粉电导率下降、硬度增加、延展性降低,而非金属杂质元素则显著降低其化学稳定性和耐腐蚀性。综合实验结果得出结论:杂质元素的精确控制是提升超细镍粉性能的关键,这可为超细镍粉的工业应用提供重要指导。

This study aims to explore the influence of impurity elements on the properties of ultrafine nickel powder,providing theoretical basis for optimizing its preparation process and improving its application performance.The experiment systematically studied the mechanism of the effects of different types and contents of impurity elements on the conductivity,hardness,ductility,chemical stability,and corrosion resistance of nickel powder.The results showed that metallic impurities caused a decrease in conductivity,an increase in hardness,and a decrease in ductility of nickel powder,while non-metallic impurities significantly reduced its chemical stability and corrosion resistance.The conclusion drawn from the comprehensive experimental results is that precise control of impurity elements is the key to improving the performance of ultrafine nickel powder,which can provide important guidance for the industrial application of ultrafine nickel powder.