| METALS AND METAL MATRIX COMPOSITES |
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| Preparation and Shear Properties of Ti2AlC Ceramic Dispersion Reinforced Al Matrix Materials |
| ZHANG Qiang1, CAI Zhangwen1, DONG Lanjing1, BAI Yuelei2, ZHU Chuncheng1
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1 Kay Laboratory for Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
2 National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, China |
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Abstract High purity Ti2AlC powder was prepared by self-propagating high temperature method. The Cu coated Ti2AlC powder was synthesized by electroless plating method,and Cu source was provided by CuSO4·5H2O. After electroless plating copper, ceramic particles were mixed with Al powder.Ti2AlC ceramic reinforced Al matrix materials were fabricated by hot-pressing sintering.The results show that Ti2AlC has autocatalytic effect, uniform and stable nano Cu coating can be obtained without any surface pretreatment.The reinforcement phase plays an effective role in binding Al matrix. According to X-ray diffraction analysis, the main phases of Cu-coated Ti2AlC ceramic reinforced Al matrix materials were Al, Ti2AlC and Al2Cu.The Al2Cu can bridge Al matrix and Ti2AlC ceramic. After the Cu coating was introduced, the shear resistance of the compo-sites was improved by 65.7%.
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Published: 06 November 2020
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| Fund:National Natural Science Foundation of China (51572064), National Defense Basic Scientific Research Project (JCKYS2019603C005) and Key Project of Natural Science Foundation of Heilongjiang Province (ZD2017011). |
About author:: Qiang Zhang, master student, mainly engaged in the preparation of ceramic and metal matrix composites.
Chuncheng Zhu, professor, master tutor, his research direction is ceramic-based composite materials, presided over 2 projects of the National Natural Science Foundation of China, presided over a number of provincial-level scientific research projects, and obtained more than 10 national authorizations. He has won the second prize of Heilongjiang Science and Technology and published more than 50 research papers. |
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2020, Vol. 34 
