聚晶金刚石的高压合成工艺研究毕业论文.doc

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1、聚晶金刚石的高压合成工艺研究毕业论文目录1绪论··································································11.1拉丝模概述·························································11.2拉丝模分类及发展状况···············································21.3拉丝模的孔型结构·························

2、··························61.4拉丝模的破坏及磨损研究·············································81.4.1拉丝模的破坏形式·················································81.4.2拉丝模的磨损····················································101.5聚晶金刚石拉丝模坯材料的发展及研究现状················

3、············141.6研究目的及意义····················································172实验过程及测试方法···················································182.1实验材料及设备····················································182.2PCD拉丝模的制备过程··································

4、·············192.3实验测试方法与分析················································212.3.1扫描电镜及能谱分析··············································212.3.2维氏硬度························································212.3.3磨耗比·······································

5、···················223PCD拉丝模芯的合成工艺研究············································243.1烧结时间对力学性能的影响··········································243.1.1烧结时间对显微维氏硬度的影响····································243.1.2烧结时间对磨耗比的影响·······································

6、···263.2烧结温度对力学性能的影响··········································273.2.1烧结温度对显微维氏硬度的影响····································283.2.2烧结温度对磨耗比的影响··········································303.3PCD拉丝模坯的显微形貌及能谱分析···································313.3.1烧结时间对显微形貌的

7、影响·········································313.3.2烧结温度对显微形貌的影响·········································323.3.3PCD拉丝模坯的能谱分析···········································334PCD拉丝模坯高压烧结过程及机理·····································354.1PCD拉丝模坯的烧结过程···············

8、······························354.2PCD拉丝模坯的烧结机理·············································365结论·································································39参考文献·····························································