白云石内衬材料在合成金刚石传压密封介质中的作用

陈天虎; 王道轩; 方啸虎; 唐述培

doi:10.11858/gywlxb.2001.04.009

白云石内衬材料在合成金刚石传压密封介质中的作用

doi: 10.11858/gywlxb.2001.04.009

1.
合肥工业大学资源与环境科学系，安徽合肥 230009；
2.
宏晶新材料有限公司，安徽和县 238200

详细信息

通讯作者:
陈天虎

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出版历程
- 收稿日期: 2001-04-16
- 修回日期: 2001-06-11
- 发布日期: 2001-12-05

Effect of Inner Liner Material (Dolomite) on Synthetic Diamond

1.
Department of Resources and Environment, Hefei University of Technology, Hefei 230009, China;
2.
Hongjing New Material Limited Company, Hexian 238200, China

More Information

Corresponding author: CHEN Tian-Hu

摘要

摘要: 通过合成金刚石实验以及对经历高温高压作用前后传压密封材料中白云石内衬的薄片显微镜观测、X射线粉末衍射和化学分析等研究，发现白云石在合成金刚石的高温高压下基本稳定，但透入性劈理发育。说明高温高压下白云石易发生破碎而变形，其等静压流变特性是以透入性劈理形式表现出来的。其中的杂质SiO2等形成科石英、普通辉石，有无定形碳质产生，没有游离CaO、MgO物相形成。依据研究结果提出白云石内衬材料在金刚石合成中起多种作用，能够提高传压密封介质材料的综合性能。
- 传压密封材料 /
- 合成金刚石 /
- 白云石
Abstract: From the investigations on the inner liner material made up of mainly dolomite by slice, X-radial powder diffraction and chemical analysis before and after high temperature and pressure, it is found that dolomite is stable under the conditions of high temperature and pressure. However permeating cleavage texture were developed. Therefore dolomite under high temperature and pressure is deformed through cracking. Flow-transforming characteristics under static pressure are manifested with the permeating cleavage texture style. Impurities formed coesite and augite. Formless carbon appears, but there is no free CaO, MgO formed. According to the results it is suggested that dolomite inner liner takes much sort action and can improve the total performance of the material passing pressure and pressurizing on the process of synthesizing diamond. This result was important for the development of the material passing pressure and pressurizing for synthesizing diamond.
- material passing pressure and pressurizing /
- synthetic diamond /
- dolomite