摘要
通过X射线粉末衍射仪(XRD)、扫描电子显微镜(SEM)对高温高压前后白云石内衬的晶相以及形貌进行分析。结果表明白云石内衬材料中的白云石相在高温高压前后没有发生相变,但是科石英相在高温高压后发生相变。与此同时,白云石内衬的形貌也发生变化,并且不同区域的形貌也不同,形貌的变化是与温度、压力的变化同步的。分析表明这主要是由于白云石内衬不同区域的温度、压力分布不同造成的。
The phases of dolomite lining before and after high temperature and pressure were studied by X-ray powder diffraction （XRD）, while the morphologies were analyzed by scanning electron microscope （SEM）. The results indicated that the dolomite phase in dolomite lining has not changed, but coesite phase has changed after high temperature and pressure. At the same time, the morphologies of the dolomite lining were changed with the different regions which were synchronized with the changes of temperature, pressure. The analysis showed that this is mainly due to dolomite lining with different temperature, pressure distribution in the different areas.
出处
《超硬材料工程》
CAS
2013年第4期1-5,共5页
Superhard Material Engineering
基金
国家自然科学基金项目(50572032)
关键词
人造金刚石
白云石内衬
温度
压力
artificial diamond
dolomite lining
temperature
pressure
