摘要
在应用粉末层铺法制备梯度聚晶金刚石复合片(PDC)的基础上,用扫描电镜、热分析仪对其进行了微观组织观察和耐热性能测定。结果表明：以钴作粘结剂的聚晶金刚石层中金刚石相实现了金刚石-金刚石结合,通过梯度过渡层与硬质合金基体结合,既保证了聚晶金刚石的硬度,又改善了界面的结合状况；聚晶金刚石的耐热性比单晶金刚石有较大提高,并且其耐热性受到加热速度、环境气氛的影响。
Gradient polycrystalline diamond compact （PDC） was manufactured with PM method. Its microstructure and heat resistance were studied by SEM, DSC and TG. The interfacial binding was improved by gradient middle layer and the PDC possessed better heat-resistance than single crystalline diamond. The heatresistance was affected by heating rate and environmental conditions.
出处
《机械工程材料》
CAS
CSCD
北大核心
2006年第6期50-51,86,共3页
Materials For Mechanical Engineering
基金
江苏省自然科学基金(BK200218)
关键词
梯度材料
聚晶金刚石复合片
耐热性能
gradient material
polycrystalline diamond compact
heat resistance
