Dense SiC containing strongly aligned plate-like grains by magnetic treatment

S. H. Lee; L. Feng; J. Yin; J. S. Lee; X. Zhu; T. S. Suzuki; Y. Sakka; H. Tanaka

doi:10.1016/j.ceramint.2014.12.078

Dense SiC containing strongly aligned plate-like grains by magnetic treatment

S. H. Lee^*, L. Feng, J. Yin, J. S. Lee, X. Zhu, T. S. Suzuki, Y. Sakka, H. Tanaka

^*Corresponding author for this work

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

10 Citations (Scopus)

Abstract

Dense SiC having strongly aligned plate-like grains was prepared by slip casting under strong magnetic field and subsequent densification using Al₃BC₃ additive. Irregular-shaped 6H-SiC powders in the green body were strongly aligned by the magnetic treatment. Subsequently, Al₃BC₃ additive induced the formation of aligned plate-like SiC grains during densification. The hardness of SiC could be tailored up to 11% by the strong alignment of the grains. Crack deflection was also strongly affected by the direction of the aligned plate-like grains. As a result, the length of the cracks which propagated parallel to the elongated grains was 18.6% shorter compared to that formed perpendicular to the grains.

Original language	English
Pages (from-to)	5079-5084
Number of pages	6
Journal	Ceramics International
Volume	41
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2014.12.078
Publication status	Published - 2015 Apr 1
Externally published	Yes

Keywords

A. Sintering
B. Microstructure-final
C. Mechanical properties
D. SiC Magnetic treatment

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2014.12.078

Cite this

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title = "Dense SiC containing strongly aligned plate-like grains by magnetic treatment",

abstract = "Dense SiC having strongly aligned plate-like grains was prepared by slip casting under strong magnetic field and subsequent densification using Al3BC3 additive. Irregular-shaped 6H-SiC powders in the green body were strongly aligned by the magnetic treatment. Subsequently, Al3BC3 additive induced the formation of aligned plate-like SiC grains during densification. The hardness of SiC could be tailored up to 11% by the strong alignment of the grains. Crack deflection was also strongly affected by the direction of the aligned plate-like grains. As a result, the length of the cracks which propagated parallel to the elongated grains was 18.6% shorter compared to that formed perpendicular to the grains.",

keywords = "A. Sintering, B. Microstructure-final, C. Mechanical properties, D. SiC Magnetic treatment",

author = "Lee, {S. H.} and L. Feng and J. Yin and Lee, {J. S.} and X. Zhu and Suzuki, {T. S.} and Y. Sakka and H. Tanaka",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd and Techna Group S.r.l.",

year = "2015",

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doi = "10.1016/j.ceramint.2014.12.078",

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journal = "Ceramics International",

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TY - JOUR

T1 - Dense SiC containing strongly aligned plate-like grains by magnetic treatment

AU - Lee, S. H.

AU - Feng, L.

AU - Yin, J.

AU - Lee, J. S.

AU - Zhu, X.

AU - Suzuki, T. S.

AU - Sakka, Y.

AU - Tanaka, H.

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Dense SiC having strongly aligned plate-like grains was prepared by slip casting under strong magnetic field and subsequent densification using Al3BC3 additive. Irregular-shaped 6H-SiC powders in the green body were strongly aligned by the magnetic treatment. Subsequently, Al3BC3 additive induced the formation of aligned plate-like SiC grains during densification. The hardness of SiC could be tailored up to 11% by the strong alignment of the grains. Crack deflection was also strongly affected by the direction of the aligned plate-like grains. As a result, the length of the cracks which propagated parallel to the elongated grains was 18.6% shorter compared to that formed perpendicular to the grains.

AB - Dense SiC having strongly aligned plate-like grains was prepared by slip casting under strong magnetic field and subsequent densification using Al3BC3 additive. Irregular-shaped 6H-SiC powders in the green body were strongly aligned by the magnetic treatment. Subsequently, Al3BC3 additive induced the formation of aligned plate-like SiC grains during densification. The hardness of SiC could be tailored up to 11% by the strong alignment of the grains. Crack deflection was also strongly affected by the direction of the aligned plate-like grains. As a result, the length of the cracks which propagated parallel to the elongated grains was 18.6% shorter compared to that formed perpendicular to the grains.

KW - A. Sintering

KW - B. Microstructure-final

KW - C. Mechanical properties

KW - D. SiC Magnetic treatment

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DO - 10.1016/j.ceramint.2014.12.078

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SN - 0272-8842

VL - 41

SP - 5079

EP - 5084

JO - Ceramics International

JF - Ceramics International

IS - 3

ER -

Dense SiC containing strongly aligned plate-like grains by magnetic treatment

Abstract

Keywords

ASJC Scopus subject areas

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