摘要
利用高分辨电子显微镜(HREM)和光学衍射的方法,对分别加热400℃和800℃处理的煤样进行了研究,并与未加热的煤样进行了对比。高分辨像清楚地显示了煤核的形态。常温下,煤核的尺度为纳米量级;加热400℃处理后,长大到十纳米量级;对800℃的情况,有次生结构出现,使煤核减小到纳米量级,同时高分辨像和光学衍射均表明煤核中有孪晶存在。
Coal samples heated at 400℃ and 800℃ respectively have been studied by high resolution electron microscopy(HREM)and optical diffraction. The nucleus in the coal about nanometres in size at room temperature and growing to tens of nanometres at 400℃ and finally reduced to nanometres at 800℃ has been examined. Meanwhile, secondary structure may appear at 800℃ causing decomposition of the nucleus, and the microtwins introduced during this stage in the nucleus have also been revealed by both HREM image and optical diffraction.
出处
《矿物学报》
CAS
CSCD
北大核心
1989年第3期262-268,共7页
Acta Mineralogica Sinica
