| 粉末触媒合成高品级金刚石的工艺研究 |
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| 引用本文： | 李彦涛,王改民,贾晓鹏,马红安.粉末触媒合成高品级金刚石的工艺研究[J].金刚石与磨料磨具工程,2011,31(4):23-28. |
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| 作者姓名： | 李彦涛 王改民 贾晓鹏 马红安 |
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| 作者单位： | 1. 河南工业大学,郑州,450000
2. 吉林大学超硬材料国家重点实验室,长春,130012 |
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| 基金项目： | 郑州市科技攻关计划(NO.08SGYG25121-2)资助项目 |
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| 摘 要： | 本文提出了金刚石合成的二阶段升温升压工艺,讨论了各工艺参数(暂停时间、台阶功率、台阶压力)对粉末触媒高温高压合成优质金刚石单晶的影响,并对实验现象进行了分析,确立了高品级金刚石的合成工艺.实验结果表明:暂停时间长短影响成核的数量,暂停时间长金刚石产量低,暂停时间短金刚石产量高,但晶形较差；随着台阶功率的增加,金刚石的成...
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| 关 键 词： | 两阶段升温升压 工艺参数 金刚石成核 |
Study on the synthesis technology for high grade diamond with powder catalyst |
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| Li Yantao,Wang Gaimin,Jia Xiaopeng,Ma Hongan.Study on the synthesis technology for high grade diamond with powder catalyst[J].Diamond & Abrasives Engineering,2011,31(4):23-28. |
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| Authors: | Li Yantao Wang Gaimin Jia Xiaopeng Ma Hongan |
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| Affiliation: | Li Yantao1 Wang Gaimin2 Jia Xiaopeng3 Ma Hongan3 (1.Henan University of Technology,Zhengzhou 450000,China)(2.State Key Laboratory for Superhard Materials,Jilin University,Changchun 130012,China) |
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| Abstract: | A diamond synthesis technology of two-step pressure-rising and temperature-increasing was put forward in this paper.Influences of technology parameters,such as pause duration,power and pressure steps,upon diamond synthesis with powder catalyst at high pressure and high temperature(HPHT) were discussed,and the experiment phenomena were analyzed.Furthermore,the technology for high grade diamonds synthesis was established.The results showed that pause duration affected the quantity of diamond nucleus.Longer pa... |
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| Keywords: | two-step temperature-increasing and pressure-rising technology parameters diamond nucleus |
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