【摘要】 在Mg-B-N 体系中通过控制立方氮化硼晶体的成核率及生长速度,在4.5～6.0GPa、1500-1900℃的高压高温条件下,在几分钟时间内,成功地获得了粒径达毫米量级的立方氮化硼单晶体,其最大单晶粒径达1.6mm。研究了该体系中立方氮化硼单晶的生长特性,讨论了该种单晶体在Mg-B-N 体系中的生长机制更多还原

【Abstract】 Single crystals of cubic boron nitride with a diameter of about millimeter order were obtained by controlling the nucleation rate of cBN crystal under 4.5 -6. 0GPu and 1500-1900℃ for several minutes. The maximal size of the cBN single crystals is 1.6 millimeter. The growth characteristic and mechanism of cBN crystal were also discussed.更多还原