聚晶金刚石复合片缺陷分析、分类及表征方法的研究  

Research on defect analysis, classification and characterization of polycrystalline diamond compact

作　　者：刘芳[1] 范文捷[2] 周传勋 

机构地区：[1]中原工学院材料与化工学院,河南郑州450007 [2]中原工学院信息商务学院,河南郑州450007 [3]郑州白鸽集团技术处,河南郑州450006

出　　处：《功能材料》2007年第A10期3806-3808,共3页Journal of Functional Materials

基　　金：河南省自然科学基金资助项目（0411052200）

摘　　要：聚晶金刚石复合片（PDC）是在高温高压下制备而成的。理论上希望聚晶金刚石层完全致密化，但实际生产过程中总不可避免的在金刚石层存在缺陷。结合生产实际和实验对聚晶金刚石复合片（PDC）中存在的缺陷进行了分析,认为PDC中的缺陷可分为宏观的不均匀缺陷和微观的不均匀缺陷。借助于不同的实验方法对PDC进行了分析，试图对PDC中存在的缺陷进行无损检测方法的研究,实验研究结果表明，对宏观的不均匀缺陷（明显的、隐含的）可以采用显微镜、A扫描、C扫描进行表征；对于微观的不均匀缺陷（内应力）可以通过X衍射法低角度区谱线斜率的变化进行表征．The polycrystalline diamond compact （PDC） is prepared under high temperature and high pressure. In theory, we hope the densification of polycrystalline diamond layer could happen completely. Being linked to manufacture practice and experimental research, the defect of PDC was analyzed in this paper. The defect of PDC can be classified into two types： macro-uneven-defect and micro-uneven-defect. The characterization of PDC was also studied in this paper, through the analysis of PDC under different experimental methods. The experimental research result shows that the macro-uneven-defect can be characterized through microscope, A-scan, C-scan; while micro-uneven-defect can be characterized by using low angle X-ray diffraction method.

关 键 词：PDC 缺陷 分类 表征 

分 类 号：TQ164.8[化学工程—高温制品工业]