物理学报Issue(19)：1-7,7.DOI:10.7498/aps.63.198101
高温高压下掺硼宝石级金刚石单晶生长特性的研究
Studies on synthesis of b oron-dop ed Gem-diamond single crystals under high temp erature and high presure
摘要
Abstract
In this paper, by choosing catalyst of FeNiMnCo alloy, boron-doped diamond single crystals are synthesized under 5.1-5.6 GPa and 1230-1600 ◦C; the temperature field is studied by finite element method (FEM). First, the P-T phase diagram for diamond single crystal growth, in the synthesis system of FeNiMnCo-C-B, is obtained, and the lowest synthesis conditions of 5.1 GPa and 1230 ◦C is found in the studies. By simulation with FEM, it is found that the content of boron element should be less and less in the growth of diamond single crystal in the {111} sector, and the reason is that the growth speed is reduced in the sectors. By growing diamond crystals with{111}faces, it is also found that the content of boron element in {111} secondary sector is greater than that in {111} primary sector, which is duo to the rapid growth of {111} secondary sector. Compared with the synthesis of diamond single crystal by film growth method, the diamond crystals thus obtained has no pits, the doping content of boron can be greater, and the diamond can be synthesized by temperature gradient method.关键词
高温高压/温度梯度/金刚石/触媒Key words
high temperature and high pressure/temperature gradient/diamond/catalyst引用本文复制引用
肖宏宇,李尚升,秦玉琨,梁中翥,张永胜,张东梅,张义顺..高温高压下掺硼宝石级金刚石单晶生长特性的研究[J].物理学报,2014,(19):1-7,7.基金项目
国家自然科学基金青年科学基金(批准号:61007023)和河南省教育厅项目(批准号:13A140792,12A430010,13B140140)资助的课题.* Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No.61007023), and the Education Department of Henan Province, China (Grant Nos.13A140792,12A430010,13B140140) （批准号:61007023）
