Synthesis of high quality type-Ib diamond crystals in carats grade

• 来源期刊: 科学通报(英文版)
• 学科: 农学
• 关键词: 宝石级金刚石 单晶合成 克拉 金刚石晶体 质型 经济增长 生长温度 钻石首饰
• 年，卷（期）: 2010,（14）
• 页码范围: 1372-1375
• 页数: 4页
• 分类号: S763.7 P619.281
• 语种: 英文

摘要

High quality type-Ib tower-shape gem-diamond crystals in carats grade were synthesized in cubic anvil high pressure apparatus (SPD-6×1200) at 5.4 GPa and 1250-1450°C. The relationship between the growth time and the weight of growth diamond has been gained. The faces of {110} and {113} were found in the synthetic diamond crystals frequently. We found that the relative growth rate of {113} face was descending with the increase of growth temperature, and that of {110} face had no obvious change with the incre...