| 溶媒表面夹杂物对金刚石形核的影响 |
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| 引用本文： | 王四清,吕海波.溶媒表面夹杂物对金刚石形核的影响[J].金刚石与磨料磨具工程,1997(6):14-17. |
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| 作者姓名： | 王四清 吕海波 |
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| 作者单位： | 中南工业大学粉末冶金研究所!410083 |
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| 摘 要： | 本文在对Ｔｉ７０－Ｍｎ２５－Ｃｏ５合金溶媒片进行表面夹杂物的观察与分析之后，向溶媒片表面添加了与这些夹杂物或类似的粉末粒子，以研究其对金刚石形核的影响作用。结果发现，在原始ＮｉＭｎＣｏ合金溶煤片表面本身就存在着许多夹杂物粒子，而向溶媒片表面添加与之相似的粉末粒子，将导致金刚石形核密度的明显增加。在金刚石合成中，溶媒片表面夹杂物的存在对金刚石形核密度的控制的影响作用是不可忽视的。
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| 关 键 词： | 金刚石 合成 形核 表面夹杂物 溶媒 |
Influence of the Inclusions on the Surface of Solvent-Catalyst alloy upon the Nucleation of Diamonds |
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| Wang Siqing et al.Influence of the Inclusions on the Surface of Solvent-Catalyst alloy upon the Nucleation of Diamonds[J].Diamond & Abrasives Engineering,1997(6):14-17. |
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| Authors: | Wang Siqing |
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| Affiliation: | Wang Siqing et al |
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| Abstract: | In this paper, the inclusions on the initial surface of solvent-catalyst alloy Ni70-Mn25-Co5 disk were investigated, and then the effect of foreign particles on nucleation of diamond was studied. It is shown that lots of in clusion particles are abserved on the initial sarface of alloy disc, they are likely composed of the oxides of Al, Mn and Si. Increasing the amount of foreign particles such as Al2O3 .MnO2 and SiO2 on the surfaces of alloy discs will result in a significant rise in the nucleation density of diamond. The influence of inclusions on nucleation of diamond should be not ignored for the production of well-shaped diamond grits. |
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| Keywords: | diamond heterogeneous nuclention solvent-catalyst inclusions |
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