【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。更多还原

【Abstract】 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.更多还原