Effects of passing a direct current on densification of SiC ceramics with 10 wt.% Al2O3 - Y2O3 as an additive

Limeng Liu; Lianbing Zhong; Guihong Geng; Feng Ye; Yu Zhou

doi:10.1016/j.matchemphys.2015.09.010

Effects of passing a direct current on densification of SiC ceramics with 10 wt.% Al₂O₃ - Y₂O₃ as an additive

Limeng Liu^*
, Lianbing Zhong
, Guihong Geng
, Feng Ye
, Yu Zhou

^*Corresponding author for this work

North Minzu University
Harbin Institute of Technology

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

8 Scopus citations

Abstract

β - SiC powder mixed with 10 wt.% Al₂O₃ and Y₂O₃ powder in a molar ratio of 2: 3 was consolidated by spark plasma sintering (SPS) at 1700-1900 C. Three SPS routes were designed to contrast the effects of passing a strong direct current (DC) on the densification behavior of the SiC materials. The wetting of the Y - Al - Si - O liquid to the SiC particles was increased by the DC, hence better densification. The resultant SiC ceramic had a finer uniform microstructure and high flexural strength.

Original language	English
Pages (from-to)	8-13
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	165
DOIs	https://doi.org/10.1016/j.matchemphys.2015.09.010
State	Published - 1 Sep 2015
Externally published	Yes

Keywords

Carbides
Ceramics
Fracture and toughness
Microstructure
Sintering

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10.1016/j.matchemphys.2015.09.010

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title = "Effects of passing a direct current on densification of SiC ceramics with 10 wt.\% Al2O3 - Y2O3 as an additive",

abstract = "β - SiC powder mixed with 10 wt.\% Al2O3 and Y2O3 powder in a molar ratio of 2: 3 was consolidated by spark plasma sintering (SPS) at 1700-1900 C. Three SPS routes were designed to contrast the effects of passing a strong direct current (DC) on the densification behavior of the SiC materials. The wetting of the Y - Al - Si - O liquid to the SiC particles was increased by the DC, hence better densification. The resultant SiC ceramic had a finer uniform microstructure and high flexural strength.",

keywords = "Carbides, Ceramics, Fracture and toughness, Microstructure, Sintering",

author = "Limeng Liu and Lianbing Zhong and Guihong Geng and Feng Ye and Yu Zhou",

year = "2015",

month = sep,

day = "1",

doi = "10.1016/j.matchemphys.2015.09.010",

language = "英语",

volume = "165",

pages = "8--13",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

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TY - JOUR

T1 - Effects of passing a direct current on densification of SiC ceramics with 10 wt.% Al2O3 - Y2O3 as an additive

AU - Liu, Limeng

AU - Zhong, Lianbing

AU - Geng, Guihong

AU - Ye, Feng

AU - Zhou, Yu

PY - 2015/9/1

Y1 - 2015/9/1

N2 - β - SiC powder mixed with 10 wt.% Al2O3 and Y2O3 powder in a molar ratio of 2: 3 was consolidated by spark plasma sintering (SPS) at 1700-1900 C. Three SPS routes were designed to contrast the effects of passing a strong direct current (DC) on the densification behavior of the SiC materials. The wetting of the Y - Al - Si - O liquid to the SiC particles was increased by the DC, hence better densification. The resultant SiC ceramic had a finer uniform microstructure and high flexural strength.

AB - β - SiC powder mixed with 10 wt.% Al2O3 and Y2O3 powder in a molar ratio of 2: 3 was consolidated by spark plasma sintering (SPS) at 1700-1900 C. Three SPS routes were designed to contrast the effects of passing a strong direct current (DC) on the densification behavior of the SiC materials. The wetting of the Y - Al - Si - O liquid to the SiC particles was increased by the DC, hence better densification. The resultant SiC ceramic had a finer uniform microstructure and high flexural strength.

KW - Carbides

KW - Ceramics

KW - Fracture and toughness

KW - Microstructure

KW - Sintering

UR - https://www.scopus.com/pages/publications/84943352317

U2 - 10.1016/j.matchemphys.2015.09.010

DO - 10.1016/j.matchemphys.2015.09.010

M3 - 文章

AN - SCOPUS:84943352317

SN - 0254-0584

VL - 165

SP - 8

EP - 13

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

ER -

Effects of passing a direct current on densification of SiC ceramics with 10 wt.% Al₂O₃ - Y₂O₃ as an additive

Abstract

Keywords

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