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      Slip casting and pressureless sintering of Ti 3AlC 2

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          Abstract

          Slip casting and subsequent pressureless sintering (PLS) allow the preparation of complex-shaped and large-sized Ti 3AlC 2 components for many potential applications. The behaviors of the suspensions, green compacts, and sintered samples of Ti 3AlC 2 were studied in this paper. The optimized condition of 1 wt% of arabic gum as dispersant at pH = 10 results in a Ti 3AlC 2 suspension for slip casting Ti 3AlC 2 green compacts without macro defects or cracks. The sintering temperature and Al4C3 embedding powder are found to dominate the properties of the sintered Ti 3AlC 2 samples. The Ti 3AlC 2 sample sintered at 1450 °C for 1.5 h with Al 4C 3 embedding powder reaches the best properties, namely 95.3% relative density, hardness of 4.18 GPa, thermal conductivity of 29.11 W·m −1·K −1, and electrical resistivity of 0.39 μΩ·m. The findings in this work may pave the way for the application of MAX phases with large size and complex shape.

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          Author and article information

          Journal
          J Adv Ceram
          Journal of Advanced Ceramics
          Tsinghua University Press and Springer-Verlag Berlin Heidelberg (USA )
          2227-8508
          2226-4108
          01 September 2019
          01 October 2019
          : 8
          : 3
          : 367-376
          Affiliations
          aJiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
          bJiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
          Author notes
          *Corresponding authors: W. Tian, E-mail: wbtian@ 123456seu.edu.cn ; Z. Sun, zmsun@ 123456seu.edu.cn
          Article
          s40145-019-0318-4
          10.1007/s40145-019-0318-4
          Copyright © The Author(s)

          This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See https://creativecommons.org/licenses/by/4.0/.

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