摘要
采用化学镀铜法对金刚石进行表面包覆,得到了不同铜和金刚石质量比的复合粉末,再通过进行放电等离子烧结(SPS),最终得到高金刚石体积百分含量(70vol%)的铜/金刚石复合材料。结果表明:化学镀铜包覆能明显改善所得烧结体中金刚石的分布情况;该复合材料的致密度有所提高,当金刚石体积分数达到70%时,其致密度在97.5%左右,并最终使其热导率上升,最高热导率为404W/m.K。
Cu coated diamond powders in variable mass ratio of diamond and Cu were prepared by electroless plating process,then the coated powders were sintered by Spark Plasma Sintering（SPS）.Cu/diamond composite with the high content of diamond（70vol%） were obtained eventually.The results indicate that not only coating diamond by copper electroless plating process can be used to obtain the well-dispersed Cu/diamond composite,but also effectively improve the relative density of the sintered body.The relative density of the sintered body with 70vol% content of diamond is about 97.5%,and the composite with higher thermal conductivity was obtained.The thermal conductivity of the composite can reach 404 W/m·K.
出处
《热加工工艺》
CSCD
北大核心
2012年第18期109-112,共4页
Hot Working Technology
关键词
铜/金刚石复合材料
化学镀铜
热导率
致密度
Cu/Diamond composite
electroless plating
thermal conductivity
relative density
