Effects of FeNi-phosphorus-carbon system on crystal growth of diamond under high pressure and high temperature conditions

作     者：胡美华 毕宁 李尚升 宿太超 周爱国 胡强 贾晓鹏 马红安 

作者机构：School of Materials Science and EngineeringHenan Polytechnic University School of Physics and ChemistryHenan Polytechnic University State Key Laboratory of Superhard MaterialsJilin University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2015年第24卷第3期

页      面：398-401页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学] 

基　　金：supported by the Doctoral Fund of Henan Polytechnic University,China(Grant Nos.B2013-013 and B2013-044) the Research Projects of Science and Technology of the Education Department of Henan Province,China(Grant Nos.14B430026 and 12A430010) 

主　　题：diamond high pressure and high temperature additive phosphorus 

摘      要：This paper reports the crystal growth of diamond from the Fe Ni–Carbon system with additive phosphorus at high pressures and high temperatures of 5.4–5.8 GPa and 1280–1360°C. Attributed to the presence of additive phosphorus,the pressure and temperature condition, morphology, and color of diamond crystals change obviously. The pressure and temperature condition of diamond growth increases evidently with the increase of additive phosphorus content and results in the moving up of the V-shape region. The surfaces of the diamonds also become coarse as the additive phosphorus added in the growth system. Raman spectra indicate that diamonds grown from the Fe Ni-phosphorus-carbon system have more crystal defects and impurities. This work provides a new way to enrich the doping of diamond and improve the experimental exploration for future material applications.