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

Autor:	J. Yin, Hidehiko Tanaka, J.S. Lee, Tohru S. Suzuki, X. Zhu, Lun Feng, Yoshio Sakka, S.H. Lee
Rok vydání:	2015
Předmět:	Materials science Process Chemistry and Technology Materials Chemistry Ceramics and Composites Perpendicular Green body Slip (materials science) Composite material Surfaces Coatings and Films Electronic Optical and Magnetic Materials Magnetic field
Zdroj:	Ceramics International. 41:5079-5084
ISSN:	0272-8842
DOI:	10.1016/j.ceramint.2014.12.078
Popis:	Dense SiC having strongly aligned plate-like grains was prepared by slip casting under strong magnetic field and subsequent densification using Al 3 BC 3 additive. Irregular-shaped 6H-SiC powders in the green body were strongly aligned by the magnetic treatment. Subsequently, Al 3 BC 3 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::866f9c87d31779af387dbc038ffa48c2 https://doi.org/10.1016/j.ceramint.2014.12.078 Zobrazit plný text záznamu Full Text from ScienceDirect