Growth mechanisms of surface crystallized diopside
Growth mechanisms of surface crystallized diopside
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DOI：
10.1039/c3ce40796a
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发表时间：
2013-01-01
期刊：
影响因子：
3.1
通讯作者：
Ruessel, Christian
中科院分区：
文献类型：
--
作者：
Otto, Katrin;Wisniewski, Wolfgang;Ruessel, Christian
将具有相似组成的两种玻璃A和B熔融并在870 ℃下退火至多20小时以引发透辉石的表面结晶。使用X射线衍射（XRD）、扫描电子显微镜（SEM）和电子背散射衍射（EBSD）进行相和取向分析。两种玻璃都显示出两个可辨别的晶体生长层：虽然在玻璃A中出现多个相，但在适应的玻璃B中仅检测到透辉石。层1中晶体生长的大部分经历90度的取向变化。在经调整的玻璃B中，层1和层2的主要c轴取向彼此正交。样品变形和特定的裂纹图案附近的表面描述和解释发生的张力。
The two glasses A and B of similar composition are melted and annealed at 870 degrees C for up to 20 h to initiate the surface crystallization of diopside. Phase and orientation analyses are performed using X-ray diffraction (XRD), scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD). Both glasses show two discernible layers of crystal growth into the bulk: while multiple phases occur in glass A only diopside is detected in the adapted glass B. The most part of crystal growth in layer 1 is subject to an orientation change of 90 degrees. In the adapted glass B, the predominant c-axes orientations of layer 1 and 2 are orthogonal to each other. Sample deformation and specific crack patterns near the surface are described and explained by occurring tensions.