Journal of Inorganic Materials, Volume. 35, Issue 1, 41(2020)

Hot-pressing Sintering of Double-A-layer MAX Phase Mo2Ga2C

Sen JIN1... Zuo-Tong WANG2, Ya-Qiong DU1, Qian-Ku HU1, Jian-Gong YU2 and Ai-Guo ZHOU1,* |Show fewer author(s)
Author Affiliations
  • 1School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
  • 2School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454003, China
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    Mo2Ga2C, a double-A-layer MAX, is reported to be films or powders. This paper researched the sintering properties of M2Ga2C powders to make dense bulk samples by vacuum hot pressing. It was found that 750 ℃ was a suitable sintering temperature, while higher temperature (850 ℃) resulted in decomposition of Mo2Ga2C yielding to main product of Mo2C. During sintering process at 750 ℃, its grain size did not increase obviously with sintering time, meanwhile the size of pores decreased markedly and the relative density increased significantly with the increasing sintering time. Additionally, the hot-pressed samples had obvious texture. Due to layering, some grains changed their orientations during sintering, of which most of the (00l) planes in the hot-pressed samples preferred to be perpendicular to the direction of hot press. Almost fully densed Mo2Ga2C bulk (relative density: 98.8%) was obtained by hot pressing at 750 ℃ for 8 h. This advantage of the method suggested that it can serve as a promising preparation for Mo2Ga2C, a double-A-Layer MAX.

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    Sen JIN, Zuo-Tong WANG, Ya-Qiong DU, Qian-Ku HU, Jian-Gong YU, Ai-Guo ZHOU. Hot-pressing Sintering of Double-A-layer MAX Phase Mo2Ga2C[J]. Journal of Inorganic Materials, 2020, 35(1): 41

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    Paper Information

    Category: RESEARCH PAPER

    Received: Jun. 19, 2019

    Accepted: --

    Published Online: Feb. 24, 2021

    The Author Email: ZHOU Ai-Guo (zhouag@hpu.edu.cn)

    DOI:10.15541/jim20190296

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