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Phase formation of Al2O3/Ti(C,N)–NiTi composite |
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| Authors: | Zhimeng Xiu J. Laeng Xudong Sun Qian Li Sung Kang Hur Yinong Liu |
| Affiliation: | aThe Key Laboratory for Anisotropy and Texture of Materials, Northeastern University, Shenyang 110004, China bSchool of Mechanical Engineering, The University of Western Australia, Crawley 6009, Australia cSchool of Nano and Advanced Materials, Changwon National University, 6 Sarimdong, Changwon, Kyungnam, Republic of Korea |
| Abstract: | This study investigates the addition of NiTi shape memory alloy into Al2O3/Ti(C,N) ceramic as a toughening agent. The reported study is focused on the thermal–chemical interaction between the NiTi additive and the ceramic matrix. It is found that at the sintering temperature of 1673 K, the NiTi alloy is melted and the Ti content of the molten alloy react with the ceramic matrix to form TiC, leaving behind Ni which resolidifies into elliptical inclusions with distinctive mutlizone structures in the matrix of the ceramic. These findings provide useful guidance for NiTi–ceramic composite design. |
| Keywords: | Composite NiTi Shape memory alloy Ceramic toughening Sintering |
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