| A bulk metal/ceramic composite material with a cellular structure |
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| 作者姓名： | ZHAO Zhankui YAO Kefu LI Jingfeng |
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| 作者单位： | [1]Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Department of Mechanical Engineering, Tsinghua Uni versity, Beijing 100084, China [2]Department of Materials Science and Engineering, Changchun University of Technology, Changchun 130012, China [3]State Key Laboratory of New Ceramic and Fine Process, Tsinghua University, Beijing 100084, China |
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| 摘 要： | Metal/ceramic composite materials can be divided into two groups: one is ceramic reinforced metal matrix composite, and the other is metal toughened ceramic matrix composite. The research on these materials mainly focuses on the mechanical properties due …
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| 关 键 词： | 金属/陶瓷复合材料 多孔结构 制备方法 火花等离子体烧结 |
| 收稿时间： | 2005-03-03 |
| 修稿时间： | 2005-03-032005-09-01 |
A bulk metal/ceramic composite material with a cellular structure |
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| ZHAO Zhankui YAO Kefu LI Jingfeng.A bulk metal/ceramic composite material with a cellular structure[J].Chinese Science Bulletin,2006,51(2):235-239. |
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| Authors: | Zhankui Zhao Kefu Yao Jingfeng Li |
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| Institution: | (1) Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China;(2) Department of Materials Science and Engineering, Changchun University of Technology, Changchun, 130012, China;(3) State Key Laboratory of New Ceramic and Fine Process, Tsinghua University, Beijing, 100084, China |
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| Abstract: | A bulk metal/ceramic composite material with a honeycomb-like micro-cell structure has been prepared by sintering the spherical
Al90Mn9Ce1 alloy powders clad by Al2O3 nano-powder with the spark plasma sintering (SPS) technique. The as-prepared material consists of Al90Mn9Ce1 alloy cell and closed Al2O3 ceramic cell wall. The diameter of the cells is about 20–40 μm, while a thickness of the cell wall is about 1–2 μm. The ultimate
compressive strength of the as-sintered materials is about 514 MPa, while its fracture strain is up to about 0.65 %. This
composite material might possess good anti-corrosion, thermal endurance and other potential properties due to its unique microstructure.
The result shows that the Al90Mn9Ce1/Al2O3 composite powders can be sintered by spark plasma sintering technique despite the large difference in their sintering temperature.
This work offers a way of designing and preparing metal/ceramic composite material with functional property. |
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| Keywords: | metal/ceramic composite cellular structure preparation method property SPS |
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