摘要
采用场发射扫描电镜(FE-SEM)、高分辨透射电镜(HRTEM)结合选区电子衍射(SAED)、X射线粉晶衍射(XRD)及X射线荧光光谱(XRF)等对浙江青田叶腊石的微结构特征进行较系统的研究。结果表明:①粉晶X射线衍射证实青田叶腊石具有典型的单斜晶系特征,该结论与叶腊石粉体选区电子衍射结果吻合,且其伴生矿为石英。②叶腊石微晶体呈"复式板片"构型,且"复式"板片中薄片厚度约为8±2 nm。③在高能电子束辐照下,叶腊石矿物颗粒形貌及晶格结构发生明显的改变,且由此产生晶格膨胀,并最终形成非晶态。
The microstructure characterizations of pyrophyllite were investigated by using field emission scanning electron microscopy （FE-SEM）, high-resolution transmission electron microscopy （HRTEM） coupled with selected area electron diffraction （SAED）, X-ray diffraction （XRD） and X-ray Fluorescence （XRF）. The following results are obtained ： （ 1 ） Major constituents of natural mineral from Qingtian pyrophyllite deposit are pyrophyllite and quartz, and the 2M-pyrophylite is corroborated well. （2） A complex laminal structure of the micro-crystal of pyrophyllite is found, and the thickness of flake microstructure is 8 ± 2 nm. （3） High energy electron beam irradiation induces morphology of clay mineral particles and lattice structure change, and it results in lattice dilatation and transformation from crystalline to amorphous finally.
出处
《矿物学报》
CAS
CSCD
北大核心
2012年第1期65-73,共9页
Acta Mineralogica Sinica
基金
浙江省科技厅重大主题专项(编号:2007C111042)
浙江省研究生教育创新基金(1004)
