压力变化对再结晶石墨的影响  

EFFECTS OF PRESSURE ON THE RECRYSTALLIZED GRAPHITE

作　　者：贺义兴[1] 郝兆印[2] 王德荣[1] 陈宇飞[2] 

机构地区：[1]长春地质学院电子显微镜室,长春130026 [2]吉林大学超硬材料国家重点实验室,长春130023

出　　处：《高压物理学报》1992年第3期161-168,共8页Chinese Journal of High Pressure Physics

摘　　要：用电子显微镜观察了不同压力下催化剂合金中花瓣状、类球状、片状再结晶石墨含量,晶粒形貌随压力变化的情况。得到如下结论:在高温高压条件下,利用过渡族金属合金作催化剂,在石墨向金刚石转化过程中,类球状再结晶石墨的存在是不可缺少的环节。Three sorts of recrystallized graphite grains (petal,sphere-like and piece) is the alloy have been observed with microscope. We found that the amount and morphology of the three sorts of recrystallized graphite grains varied with pressures and concluded that the existance of sphere-like recrystallized graphite grains is absolutely necessary for the transformation of graphite to diamond.

关 键 词：高温 高压 再结晶石墨 石墨 金刚石 

分 类 号：O613.71[理学—无机化学]