放电等离子烧结温度对纳米硬质合金性能的影响  

Research on Sintering Temperature of Nano-grained Cemented Carbide Prepared by Spark Plasma Sintering

作　　者：解迎芳[1] 王兴庆[1] 陈立东[1] 李晓东[1] 郭海亮[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《硬质合金》2004年第4期219-225,共7页Cemented Carbides

基　　金：上海市科委基金(0152nm046)资助项目

摘　　要：采用放电等离子烧结(SPS)这种新的烧结技术制取92WC-8Co纳米硬质合金。主要就放电等离子烧结92WC-8Co硬质合金的烧结温度进行研究探索,对不同的烧结温度进行对比实验,以找出最佳的硬质合金SPS烧结温度。最终发现:1150℃为放电等离子烧结纳米92WC-8Co硬质合金的最佳烧结温度,在该温度下,硬质合金制品可达到14.88g/cm3的致密度,硬度可达到94.2HRA。WC-8Co nano-grained cemented carbide was sintered by Spark Plasma Sintering . The sintering temperature was mainly researched. The microstructures and properties of WC-Co cemented carbide sintered under different temperature were compared to obtain excellent sintering temperature. The results showed that 1150℃ was the best suitable sintering temperature of nano-grained cemented carbide prepared by SPS. At this sintering temperature, full dense (14.88/cm3 )92WC-8Co nano-grained cemented carbide with hardness of 94.2HRA was obtained.

关 键 词：SPS 纳米硬质合金 烧结 

分 类 号：TG135.5[一般工业技术—材料科学与工程]