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Research Article | Open Access

Facile fabrication of cordierite-based porous ceramics with magnetic properties

Hao LIaCuiwei LIa( )Huaiming JIAaGuangjin CHENaSiyuan LIaKepi CHENbChang-An WANGcLiang QIAOd
Center of Materials Science and Engineering, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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Graphical Abstract


In this paper, cordierite-based porous ceramics with magnetic properties have been firstly in-situ synthesized by using MgO, Al2O3, and SiO2 powders as raw materials and Fe3O4 as a functional additive. Combining with the foam freeze casting method, near net size fabrication (total linear shrinkage < 2.86%) of the magnetic porous materials was realized by adjusting the amount of Fe3O4. The porosity, compressive strength, and saturation magnetization of the prepared materials were 83.9%–87.8%, 1.51–2.65 MPa, and 1.2–5.8 emu/g, respectively. The phase composition and microstructure evolutions during sintering were investigated briefly. The results showed that the synthesis temperature of cordierite was lowered about 100 ℃ due to the addition of Fe3O4. Except for the main phase-cordierite, Mg–Al–Fe spinel and α-Fe2O3 also existed in the final materials. The lattice parameters of the Mg–Al–Fe spinel and the amount of α-Fe2O3 changed obviously with the change in the sintering temperature and Fe3O4 amount, which mainly influenced the magnetic properties of the prepared materials. Thus, a facile fabrication method of the cordierite-based porous ceramics with the magnetic properties has been put forward in this paper.


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Journal of Advanced Ceramics
Pages 1583-1595
Cite this article:
LI H, LI C, JIA H, et al. Facile fabrication of cordierite-based porous ceramics with magnetic properties. Journal of Advanced Ceramics, 2022, 11(10): 1583-1595.








Web of Science






Received: 28 April 2022
Revised: 21 May 2022
Accepted: 10 July 2022
Published: 02 September 2022
© The Author(s) 2022.

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