-
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。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 existence of sphere-like recrystallized graphite grains is absolutely necessary for the transformation of graphite to diamond.
-
Key words:
- High temperature and high pressure /
- recrystallized graphite /
- diamond
-
Bundy F P. J Chem phys, 1963, 38: 631. Wentorf R H Jr. J Phys Chem, 1965, 69: 3063. 芶清泉. 吉林大学学报(自然科学版), 1974, 2: 52. 王光祖, 郑周, 陈宅. 高压物理学报, 1989, 3: 177. Akihiro Tsuzuki, Shn-Ich Hirano, Shigeharu Naka. J Mater Sci, 1984, 19: 1153. 郝兆印, 贺义兴, 陈宇飞, 等. 髙压物理学报, 1992, 6(2): 81. 吉林大学固体物理教研室编. 人造金刚石. 北京: 科学出版社, 75.
点击查看大图
计量
- 文章访问数: 8339
- HTML全文浏览量: 1824
- PDF下载量: 713