金刚石与磨料磨具工程Issue(4)：47-51,5.DOI:10.13394/j.cnki.jgszz.2015.4.0010
热处理对金刚石微粉化学镀 Ni-P 合金层的影响
Effects of heat treatment on chemically plated Ni-P alloy of diamond powder
摘要
Abstract
Ni-P alloy coating was chemically plated onto diamond powder surface and then metalized. The diamond particle size was 30—40 μm.After coating,the weight increase was 30%,in which phosphorus mass fraction was about 7%.The structure and micro-morphology of the coatings heat-treated at different temperatures were studied by scanning electron microscope and X-ray diffractometer.Results showed that within a certain range,the coating surface got smoother with the increase of temperature,and that the coating surface was smoothest when treated at 400 ℃ and turned rough after treated at 500 ℃.After treated at 300 ℃,the coating organization began to crystallize with the precipitation of Ni and Ni7 P3 phase,i.e.the structure of coating had been changed.With the increase of heat treatment temperature,crystallization was more obvious and the intensity of diffraction peaks was higher.The crystallization was completed with precipitating Ni3 P phase after heat treated at 500 ℃,during which coatings were transited from amorphous to crystalline.Mechanical mixing experiments showed that diamond powders,after heat treated at 400 ℃,could be stored for at least 48 hours in the bath.关键词
金刚石/化学镀/Ni-P 合金层/热处理Key words
diamond/chemical plating/Ni-P alloy coating/heat treatment分类
化学化工引用本文复制引用
高伟,张文军,赵月民..热处理对金刚石微粉化学镀 Ni-P 合金层的影响[J].金刚石与磨料磨具工程,2015,(4):47-51,5.
