Influence of trace elements on color of gem-grade large cultured single crystal diamond
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摘要: 利用六面顶压机采用高温高压法,以FeCo40合金为触媒,高纯石墨为碳源,在一定压力及温度梯度下研究不同微量元素的添加对培育宝石级大单晶钻石颜色的影响。结果发现:随着Ti添加量的增加,培育宝石级大单晶钻石的颜色由深黄色变为浅黄色,直至无色;同时,添加微量元素B,晶体颜色由无色变成淡蓝色,直至深蓝色。Abstract: The influence of different trace elements added on the color of gem-grade large single crystal diamond was studied under a certain pressure and temperature gradient with FeCo40 alloy as catalyst and high-purity graphite as carbon source. The results show that with the increase of Ti doping, the color of large cultured diamond changes from dark yellow to light yellow and then colorless. At the same time, with the doping of trace element B, the color of crystal changes from colorless to light blue, then dark blue.
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Key words:
- trace elements /
- doping /
- color of diamond large single crystal
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