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首页> 外文期刊>Philosophical Magazine Letters >Loop- and band-shaped defects observed in quasicrystals by X-ray topography
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Loop- and band-shaped defects observed in quasicrystals by X-ray topography

机译：通过X射线形貌在准晶体中观察到环状和带状缺陷

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摘要

Large millimetre-sized grains of Al-Cu-Fe grown by the annealing technique developed at the Centre d'Etudes de Chimie Metallurgique in Vitry, France, and subgrains cut in centimetre-sized Al-Pd-Mn quasicrystals grown by solidification (Bridgman-Czochralski) at the Laboratoire de Thermodynamique et Physico-chimie Metallurgiques in Grenoble, France, were investigated by X-ray topography. Two types of defect were identified: loops and bands. Both the nature of the strain field around these defects and their origin are discussed.
机译：在法国维特里中心化学研究所开发的退火技术中生长出了毫米级的大尺寸Al-Cu-Fe晶粒，并通过凝固生长了厘米级的Al-Pd-Mn准晶体（Bridgman-通过X射线地形图研究了法国格勒诺布尔的热电实验室和物理化学冶金实验室的Czochralski）。确定了两种类型的缺陷：环和带。讨论了围绕这些缺陷的应变场的性质及其起源。

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