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首页> 外文期刊>The journal of physics and chemistry of solids >High-pressure structural integrity and structural transformations of glass-derived nanocomposites: A review
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High-pressure structural integrity and structural transformations of glass-derived nanocomposites: A review

机译:玻璃衍生的纳米复合材料的高压结构完整性和结构转变:综述

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摘要

A review of our recent and ongoing extensive high-pressure synchrotron X-ray diffraction and high-pressure optical spectroscopy studies of nanocrystalline composites is presented. These heterophased, nano-architectured composites consist of amorphous matrices with dispersed nanocrystals or quantum dots. We show how besides compositional variations, additional tuning of these glass-derived nanocomposites can be done by exploiting elevated pressure. We examine stability and pressure-driven phase transitions occurring in nanocrystals as well as structural changes occurring in the glass matrix. Finally, we discuss the influence of the glass matrix of a composite on the structural transformations occurring in the embedded nanocrystals. (C) 2008 Elsevier Ltd. All rights reserved.
机译:介绍了我们最近和正在进行的有关纳米晶体复合材料的高压同步加速器X射线衍射和高压光谱学研究的综述。这些多相,纳米结构的复合材料由具有分散的纳米晶体或量子点的非晶质基质组成。我们展示了如何除了成分变化外,还可以通过利用高压来对这些玻璃衍生的纳米复合材料进行额外的调节。我们研究了纳米晶体中发生的稳定性和压力驱动的相变以及玻璃基质中发生的结构变化。最后,我们讨论了复合材料的玻璃基体对嵌入纳米晶体中发生的结构转变的影响。 (C)2008 Elsevier Ltd.保留所有权利。

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