Preparation and study of porous Si3N4 ceramics with high strength

Yong Zhang; Hongjie Wang; Wen Zhang; Zhihao Jin

Preparation and study of porous Si₃N₄ ceramics with high strength

Yong Zhang
, Hongjie Wang
, Wen Zhang
, Zhihao Jin

School of Materials Science and Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Porous Si₃N₄ ceramics with high strength and high porosity were obtained by the addition of small amount of carbon. The effects of carbon content, sintering temperature and reaction time on porous Si₃N₄ ceramics were studied. It was showed that SiC particles could pin the β-Si₃N₄ grains boundaries and had an effective reinforcing effect, which formed through reaction of the added carbon with SiO₂ on the Si₃N₄ surface or with the Si₃N₄ particles themselves. Sintered Si₃N₄ porous ceramics with 100 MPa strength and >40% porosity were obtained when the carbon content was 5 wt%, and the sintering temperature was 1 780°C.

Original language	English
Pages (from-to)	655-658
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	33
Issue number	6
State	Published - Jun 2004

Keywords

Porous ceramics
Silicon carbide
Silicon nitride

Cite this

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title = "Preparation and study of porous Si3N4 ceramics with high strength",

abstract = "Porous Si3N4 ceramics with high strength and high porosity were obtained by the addition of small amount of carbon. The effects of carbon content, sintering temperature and reaction time on porous Si3N4 ceramics were studied. It was showed that SiC particles could pin the β-Si3N4 grains boundaries and had an effective reinforcing effect, which formed through reaction of the added carbon with SiO2 on the Si3N4 surface or with the Si3N4 particles themselves. Sintered Si3N4 porous ceramics with 100 MPa strength and >40\% porosity were obtained when the carbon content was 5 wt\%, and the sintering temperature was 1 780°C.",

keywords = "Porous ceramics, Silicon carbide, Silicon nitride",

author = "Yong Zhang and Hongjie Wang and Wen Zhang and Zhihao Jin",

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T1 - Preparation and study of porous Si3N4 ceramics with high strength

AU - Zhang, Yong

AU - Wang, Hongjie

AU - Zhang, Wen

AU - Jin, Zhihao

PY - 2004/6

Y1 - 2004/6

N2 - Porous Si3N4 ceramics with high strength and high porosity were obtained by the addition of small amount of carbon. The effects of carbon content, sintering temperature and reaction time on porous Si3N4 ceramics were studied. It was showed that SiC particles could pin the β-Si3N4 grains boundaries and had an effective reinforcing effect, which formed through reaction of the added carbon with SiO2 on the Si3N4 surface or with the Si3N4 particles themselves. Sintered Si3N4 porous ceramics with 100 MPa strength and >40% porosity were obtained when the carbon content was 5 wt%, and the sintering temperature was 1 780°C.

AB - Porous Si3N4 ceramics with high strength and high porosity were obtained by the addition of small amount of carbon. The effects of carbon content, sintering temperature and reaction time on porous Si3N4 ceramics were studied. It was showed that SiC particles could pin the β-Si3N4 grains boundaries and had an effective reinforcing effect, which formed through reaction of the added carbon with SiO2 on the Si3N4 surface or with the Si3N4 particles themselves. Sintered Si3N4 porous ceramics with 100 MPa strength and >40% porosity were obtained when the carbon content was 5 wt%, and the sintering temperature was 1 780°C.

KW - Porous ceramics

KW - Silicon carbide

KW - Silicon nitride

UR - https://www.scopus.com/pages/publications/4544291893

M3 - 文章

AN - SCOPUS:4544291893

SN - 1002-185X

VL - 33

SP - 655

EP - 658

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 6

ER -

Preparation and study of porous Si₃N₄ ceramics with high strength

Abstract

Keywords

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