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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 >Micro structure-property relationship in high-strength MgO-Al2O3-SiO2-TiO2 glass-ceramics
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Micro structure-property relationship in high-strength MgO-Al2O3-SiO2-TiO2 glass-ceramics

机译：高强度MgO-Al2O3-SiO2-TiO2微晶玻璃的微观结构-性能关系

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摘要

An MgO-Al2O3-TiO2-SiO2 glass was exposed to various two-step heat treatments in order to produce high-strength glass-ceramics. The maximum fracture toughness of 4.3 MPa m(1/2) (accompanied by an elastic modulus of 139 GPa and a hardness of 9.5 GPa) was obtained after a two-hour pre-treatment at 800 degreesC followed by annealing at 1080 degreesC. Based on TEM imaging, energy-dispersive X-ray spectrometry, X-ray diffraction and dilatometry, an understanding of the microstructure-property relationship is developed. The high-quartz low-quartz phase transition is shown to play the key role for achieving high-strength glass-ceramics. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 16]
机译：为了生产高强度玻璃陶瓷，将MgO-Al2O3-TiO2-SiO2玻璃暴露于各种两步热处理中。在800摄氏度下进行了两个小时的预处理，然后在1080摄氏度下进行了退火，获得的最大断裂韧度为4.3 MPa m（1/2）（伴随着139 GPa的弹性模量和9.5 GPa的硬度）。基于TEM成像，能量色散X射线光谱法，X射线衍射和膨胀计，人们逐渐了解了微观结构与性质之间的关系。高石英低石英相变被证明在实现高强度玻璃陶瓷中起关键作用。 （C）2002 Elsevier Science B.V.保留所有权利。 [参考：16]

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