Evolution of interfacial nanostructures and stress states in Mg matrix composites reinforced with coated continuous carbon fibers
文献类型：期刊论文
| 作者 | W. G. Wang ; B. L. Xiao ; Z. Y. Ma |
| 刊名 | Composites Science and Technology
 |
| 出版日期 | 2012 |
| 卷号 | 72期号:2页码:152-158 |
| 关键词 | Metal-matrix composites (MMCs) Carbon fibers Sol-gel methods Interface Stress relaxation transverse tensile behavior thermal residual-stresses sicf/ti-6al-4v composites nanocrystalline ceramics graphite-fiber zro2 film zirconia phase transformation magnesium |
| ISSN号 | 0266-3538 |
| 中文摘要 | Magnesium (Mg) matrix composites reinforced with 45 vol.% continuous carbon fibers (C-f) were fabricated using a pressureless infiltration process in vacuum. In order to modify the interface between the C-f and the Mg matrix, the C-f were coated with 5.0 mol.% yttria stabilized zirconia (YSZ) in sol-gel route. The C-f/Mg composite exhibited a tensile strength of 1.08 GPa which reached 90% of the theoretical prediction by means of the rule of mixture. Microstructural examinations revealed the occurrence of interfacial reaction between the YSZ coating and the Mg matrix, producing a similar to 20 nm thick interfacial reaction layer consisting of nanocrystalline particles, which include MgO particles, remaining ZrO2 particles and a small quantity of ZrC particles. Interfacial reaction could induce a large compressive stress in the interfacial layer. As a result, some nanostructured defects, such as edge dislocations, were formed in interfacial layer due to the compressive stress. In the cooling process of fabricating the composite, the phase transformation of the remaining ZrO2 from tetragonal to monoclinic could relax the thermal residual stress of interfacial layer. (C) 2011 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60312]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | W. G. Wang,B. L. Xiao,Z. Y. Ma. Evolution of interfacial nanostructures and stress states in Mg matrix composites reinforced with coated continuous carbon fibers[J]. Composites Science and Technology,2012,72(2):152-158. |
| APA | W. G. Wang,B. L. Xiao,&Z. Y. Ma.(2012).Evolution of interfacial nanostructures and stress states in Mg matrix composites reinforced with coated continuous carbon fibers.Composites Science and Technology,72(2),152-158. |
| MLA | W. G. Wang,et al."Evolution of interfacial nanostructures and stress states in Mg matrix composites reinforced with coated continuous carbon fibers".Composites Science and Technology 72.2(2012):152-158. |
入库方式： OAI收割
来源：金属研究所
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