优质板状Ⅰb型宝石级金刚石大单晶的合成  

Synthesis of plate-shape gem diamond large single crystal under HPHT

作　　者：李勇[1] 李尚升[2] 肖宏宇[1] 黄国峰[1] 胡美华[1] 赵明[1] 颜丙敏[1] 马红安[1] 贾晓鹏[1,2] 

机构地区：[1]吉林大学超硬材料国家重点实验室,吉林长春130012 [2]河南理工大学材料科学与工程学院,河南焦作454000

出　　处：《超硬材料工程》2010年第4期34-36,共3页Superhard Material Engineering

摘　　要：高温高压下合成Ⅰb型宝石级金刚石大单晶,需要较长的合成时间。由于低温板状晶体合成区间很窄,因此较中温和高温晶体的合成相对困难。文章对板状Ⅰb型宝石级金刚石大单晶的合成进行了研究,并实现了不同尺寸优质板状晶体的可重复性合成。The synthesis of gem diamond crystal often takes a long time by temperature gradient method under high temperature and high pressure.Because the low temperature synthesis rang is very narrow,it is rather difficult to synthesize the plate of gem diamond than the higher temperature gem diamond.Thence,the synthesis of the plate of Ib-type gem diamond is discussed in this paper.In addition,the different sizes plate of gem diamond can be synthesized repeatedly.

关 键 词：金刚石大单晶 温度梯度法 板状晶体 

分 类 号：TQ164[化学工程—高温制品工业]