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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Various transmission electron microscopic techniques to characterize phase separation - illustrated using a LaF_3 containing aluminosilicate glass
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Various transmission electron microscopic techniques to characterize phase separation - illustrated using a LaF_3 containing aluminosilicate glass

机译：表征相分离的各种透射电子显微镜技术-使用含LaF_3的铝硅酸盐玻璃进行说明

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摘要

Various transmission electron microscopy techniques which are useful for the characterization of phase-separation phenomena in glass materials are exemplarily demonstrated at a 40 Si0_2-30 Al_2O_3-18 Na_2O_12 LaF_3 glass. It is shown that direct imaging of phase-separated regions possesses manifold advantages over the traditional replica technique, particular if the feature size approaches the nano-scale. Although surface replica can be accomplished effortless and made a great leap in glass structure research possible, the method is indirect, i.e. requires a deep understanding of the chemical attack leading to the surface topography eventually imaged. Moreover, surface replicas reach their limits for nanosized features due to the inherent structure of the deposited replica film.
机译：在40 Si0_2-30 Al_2O_3-18 Na_2O_12 LaF_3玻璃上示例性地展示了用于表征玻璃材料中相分离现象的各种透射电子显微镜技术。结果表明，相分离区域的直接成像比传统的复制技术具有多种优势，特别是当特征尺寸接近纳米级时。尽管可以轻松完成表面复制并在玻璃结构研究中实现巨大飞跃，但该方法是间接的，即需要深入了解导致最终成像的表面形貌的化学侵蚀。此外，由于沉积的复制品膜的固有结构，表面复制品达到了其对纳米尺寸特征的极限。

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