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首页> 外文期刊>Solid State Communications >Interplay between the local structural disorder and the length of structural coherence in stabilizing the cubic phase in nanocrystalline ZrO2
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Interplay between the local structural disorder and the length of structural coherence in stabilizing the cubic phase in nanocrystalline ZrO2

机译:纳米ZrO2中立方相稳定过程中局部结构紊乱与结构相干长度的相互作用。

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摘要

The atomic-scale structure of three nanocrystalline ZrO2 samples obtained by different techniques and possessing a different length of structural coherence has been studied using high-energy X-ray diffraction and the atomic pair distribution function technique. The studies reveal that all samples show a monoclinic-like local atomic ordering. Only when the length of structural coherence exceeds 1 nm the atomic arrangement evolves into a cubic-type one. The result underlines the importance of both the local structural disorder and the length of structural coherence, i.e. the spatial extent of longer-range atomic order, in stabilizing the technologically important cubic zirconia at room temperature. (c) 2006 Elsevier Ltd. All rights reserved.
机译:利用高能X射线衍射和原子对分布函数技术研究了三种通过不同技术获得的,具有不同结构相干长度的纳米ZrO2样品的原子尺度结构。研究表明,所有样品均显示出类似单斜晶的局部原子序。仅当结构相干的长度超过1 nm时,原子排列才会演变为立方型排列。结果强调了在室温下稳定技术上重要的立方氧化锆时,局部结构无序和结构相干长度(即更长范围原子序的空间范围)的重要性。 (c)2006 Elsevier Ltd.保留所有权利。

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