Fabrication of Porous SiAlON Using Fe<sub>2</sub>O<sub>3</sub> as Pore Former-Reference-Cited by-同舟云学术

Fabrication of Porous SiAlON Using Fe₂O₃ as Pore Former

Published:2014-10 Issue: Volume:804 Page:267-270
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Duan Qing Wen¹,Liu Rong Zhen²,Jin Hai Yun³,Yang Jian Feng⁴,Jin Zhi Hao⁴

Affiliation:

1. Xi’an Jiao Tong University

2. Filtration and Separation Engineering Research Center of Shaanxi Province

3. Xi’an Jiaotong University

4. Xi‘an Jiaotong University

Abstract

Porous SiAlON ceramics were fabricated by carbo-thermal reduction nitridation method using Fe2O3 as pore former. Particle size effects of Fe2O3 were reported in this paper. The results showed that composites were composed by SiAlON, AlN and Iron Silicon phases. The median pore diameter of Sialon was affected by the composition and particle size of Fe2O3. The fracture mode of this material was intergranular. With the increase of Fe2O3 additions, the porosity of this materials increased. The bending strength of this material was reversely proportional to Fe2O3 particle size. The maximum bending strength of Porous materials with 30wt.% Fe2O3 additions (with a porosity about 65% and the pore size is about 1μm) could reach 22 MPa. The porous Sialon ceramics with a smaller pore size exhibited a higher bending strength.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.804.267.pdf

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