【摘要】 利用高分辨电子显微镜（HREM）研究了掺杂K₂O、Na₂O的Ca₂SiO₄的精细结构。结果表明,掺杂后产生大量的（100）孪晶并证实了（001）孪晶的存在,观察了β相中新生的γ相,得出了它们之间的取向关系。同时,电子衍射和高分辨像表明,α′相的存在可能与其沿（100）的堆垛无序有关。更多还原

【Abstract】 Study on microstructures by high resolution electron microscope （HREM） proves the existence of twin lamellae,induced by shear stresses during the transformation of α′-C₂S to β-C₂S, with（100） and （001） twin planes in larnite doped with K₂O or Na₂O. γ-C₂S formed in the β-C₂S was identified and the orientation relationship between them was determined. Also, it is deduced from the electron diffraction pattern （EDP） and the HREM image that there is a possible relationship between α’-C₂S remnant and the stacking fault along its axis.更多还原