多孔氧化铝陶瓷材料的制备工艺研究进展

doi:10.19976/j.cnki.43-1448/TF.2021064

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Abstract Porous alumina ceramics are widely used as refractory materials, electrical insulators, wear-resistant mechanical parts, filtering materials and catalytic support due to their excellent mechanical properties, corrosion resistance, large specific surface area and stable chemical properties. The pores in porous alumina ceramics are commonly created by partial sintering, replica, sacrificial template or direct foaming method. Specific porous structure and porosity can be obtained by employing appropriate pore-creating method. Conventional sintering of alumina ceramics is usually characterized by high temperature, long duration, easy formation of coarse grains and residual pores. The application of advanced sintering technologies such as oscillatory pressure sintering, spark plasma sintering and microwave sintering can effectively overcome these shortcomings and comprehensively improve material properties. In order to provide references for the investigation, development and application of novel porous alumina ceramics, we reviewed the research progress on two aspects including pore-creating method and sintering technology involved in the fabrication process of porous alumina ceramics.

Key words： porous ceramics alumina powder raw material pore-creating method sintering technology

Received: 02 August 2021 Published: 22 December 2021

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	HE Xiang
	HUANG Qianli
	CHEN Yuhui
	LIU Bowei
	LIU Yong

Cite this article:

HE Xiang,HUANG Qianli,CHEN Yuhui, et al. Research progress on the fabrication technology of porous alumina ceramics[J]. Materials Science and Engineering of Powder Metallurgy, 2021, 26(6): 483-491.

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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2021064 OR http://pmbjb.csu.edu.cn/EN/Y2021/V26/I6/483

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