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Research Article | Open Access

Slip casting and pressureless sintering of Ti3AlC2

Yimin GONGa, Wubian TIANa( ), Peigen ZHANGa, Jian CHENa, Yamei ZHANGb, Zhengming SUNa( )
Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
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Abstract

Slip casting and subsequent pressureless sintering (PLS) allow the preparation of complex-shaped and large-sized Ti3AlC2 components for many potential applications. The behaviors of the suspensions, green compacts, and sintered samples of Ti3AlC2 were studied in this paper. The optimized condition of 1 wt% of arabic gum as dispersant at pH = 10 results in a Ti3AlC2 suspension for slip casting Ti3AlC2 green compacts without macro defects or cracks. The sintering temperature and Al4C3 embedding powder are found to dominate the properties of the sintered Ti3AlC2 samples. The Ti3AlC2 sample sintered at 1450 ℃ for 1.5 h with Al4C3 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.

Keywords

slip castingpressureless sintering (PLS)propertiesTi3AlC2

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Journal of Advanced Ceramics
Volume 8 Issue 3,
September 2019
Pages 367-376
DOI: 10.1007/s40145-019-0318-4
Cite this article:
GONG Y, TIAN W, ZHANG P, et al. Slip casting and pressureless sintering of Ti3AlC2. Journal of Advanced Ceramics, 2019, 8(3): 367-376. https://doi.org/10.1007/s40145-019-0318-4

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Received: 02 November 2018
Revised: 15 January 2019
Accepted: 24 January 2019
Published: 03 August 2019
© The author(s) 2019

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