高压物理学报2011，Vol.25Issue(6)：572-576,5.
FeMn粉末触媒对合成金刚石的影响
Influence of FeMn Powder Catalyst on the Synthesis of Diamond
摘要
Abstract
FeMn powder catalyst was employed to synthesize diamond in China-type cubic high-pressure apparatus. Fine single crystal diamond was successfully obtained in the graphite-FeMn system at 5.7 GPa and 1 550 ℃. The optical imaging microscopy observations show that all the synthesized diamond is in light yellow octahedral crystals with grain size of 0.3-0.5 mm. Moreover,there is plenty of white substance in the crystals. The surface morphology of crystals is checked by SEM,and craters can be found in the crystal surface. Mossbauer spectrum is used to detect the impurity in the diamonds. FeMn alloy and independent state Fe are the two states in catalysts, and inclusions in diamond mainly contained Fe and Fe3C. Fe and Mn were detected in the sample using X-ray fluorescent spectrum.关键词
金刚石/高温高压/穆斯堡尔谱Key words
diamond/High Temperatures-High Pressures/Mossbauer spectrum分类
数理科学引用本文复制引用
刘万强,马洪安,贾晓鹏..FeMn粉末触媒对合成金刚石的影响[J].高压物理学报,2011,25(6):572-576,5.基金项目
国家自然科学基金青年科研基金 （）
