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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 >Aqueous alteration of lanthanum alumino-silicate glasses
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Aqueous alteration of lanthanum alumino-silicate glasses

机译：镧铝硅酸盐玻璃的水蚀

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The aqueous alteration behavior of glasses in the system Y-La-Al-Si-O-N has been investigated using the Soxlhet test. The altered surface was then studied by means of solid and solution analyses. In the case of La-Al-Si-O-N glasses, the formation of a crystallized lanthanum hydroxycarbonate was determined by X-ray diffraction (XRD) analysis. In the case of Y-La-Al-Si-O-N, X-ray photoelectron spectroscopy analysis (XPS) reveals a complete disappearance of silicon and aluminum at the glass surface (depth analyzed: 20 Angstrom). Rutherford backscattering spectrometry (RBS) gives some evidence that the glass surface is covered with a phase consisting mainly of yttrium and lanthanum compounds. Solution and solid analyses provide evidence that yttrium increases the chemical durability of the glass. Nitrogen seems to enhance glass corrosion by increasing the pH of the solution. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 33]
机译：使用Soxlhet测试研究了Y-La-Al-Si-O-N系统中玻璃的水相变化行为。然后通过固溶和固溶分析研究改变后的表面。对于La-Al-Si-O-N玻璃，通过X射线衍射（XRD）分析确定结晶的碳酸羟基镧的形成。在Y-La-Al-Si-O-N的情况下，X射线光电子能谱分析（XPS）显示玻璃表面上的硅和铝完全消失（深度分析：20埃）。卢瑟福背散射光谱（RBS）提供了一些证据，表明玻璃表面覆盖有主要由钇和镧化合物组成的相。溶液和固体分析提供了证据，钇提高了玻璃的化学耐久性。氮似乎通过增加溶液的pH值来增强玻璃腐蚀。 （C）2000 Elsevier Science B.V.保留所有权利。 [参考：33]

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