In order to synthesize high-quality type-Ⅱa large diamond, the selection of catalyst is very important, in addition to the nitrogen getter. In this paper, type-IIa large diamonds are grown under high pressure and high temperature（HPHT） by using the temperature gradient method（TGM）, with adopting Ti/Cu as the nitrogen getter in Ni₇₀Mn₂₅Co₅（abbreviated as NiMnCo） or Fe₅₅Ni₂₉Co₁₆（abbreviated FeNiCo） catalyst. The values of nitrogen c... 

【文章來源】：Chinese Physics B. 2017年06期

【文章頁數(shù)】：5 頁

【文章目錄】：
1. Introduction
2. Experiment
3. Results and discussion
    3.1. Efficiency in eliminating nitrogen of Ti/Cu in Ni Mn Co
    3.2. Efficiency in eliminating nitrogen of Ti/Cu in Fe Ni Co
    3.3. Analysis of efficiency on eliminating nitrogen with Ti/Cu in different catalysts
    3.4. Synthesis of high-quality type-IIa large diamond
4. Conclusions



本文編號：2933751