Development of New Composites; Ceramic Bonded Carbon

Miyamoto, Yoshinari; Nakamura, Masaharu; Chen, Weiwu; Matsumoto, Taihei; Tojo, Tetsuro

doi:https://doi.org/10.18910/9257

Development of New Composites; Ceramic Bonded Carbon

Miyamoto, Yoshinari; Nakamura, Masaharu; Chen, Weiwu et al.

Transactions of JWRI, 2009, 38(2), 57-61

アクセス数:487件（2026-03-05 16:26 集計）

固定URL: https://doi.org/10.18910/9257

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タイトル	Development of New Composites; Ceramic Bonded Carbon
著者	NRID 1000060107084 1000060107084 著者名 Miyamoto, Yoshinari
	著者名 Nakamura, Masaharu
	著者名 Chen, Weiwu
	NRID 1000030294135 1000030294135 著者名 Matsumoto, Taihei
	著者名 Tojo, Tetsuro
キーワード等	Ceramic Bonded Carbon
	CBC
	gelcasting
	SiC
	Si3N4
	AlN
抄録	The new carbon composites which we named Ceramic Bonded Carbon (CBC) consist of carbon grains bonded with ceramic grainboundaries. The CBC structure can protect carbon against oxidation and improve the strength due to the three dimensional network of ceramic grainboundaries. We have developed two processing routes for different CBCs. One is for a SiC/CBC which was fabricated by SiC coating on carbon particles through the reaction of SiO vapor and carbon at 1500°C in vacuum and their consolidation at 2000°C for 20 min using a pulsed electric current sintering. Another approach is for a Si₃N₄/CBC by gelcasting, the preform of CBC and consolidation at 1500°C for 5 min. Both CBC compacts exhibited similar microstructures to the CBC model having the ceramic grainboundaries of SiC and Si₃N₄ with thicknesses below 3μm. They had the bulk density in the range of 2.2 to 2.5 g/㎤, relative density of about 90%, bending strength of 115 to 150 MPa, and electrical resistivity of 60 to 1800 μΩm. These results suggest that the CBCs have a large potential to extend the performance and application of carbon materials.
出版者	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
収録物名	Transactions of JWRI
巻(号)	38(2)
ページ	57-61
刊行年月	2009-12
言語	英語
ハンドルURL	https://hdl.handle.net/11094/9257
DOI	https://doi.org/10.18910/9257
PISSN	03874508
NCID	AA00867058
アクセス権	open access
出版タイプ	Version of Record
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.38 No.2 (2009-12)

資源タイプ	紀要論文
ローカル資源タイプ	紀要論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Transactions of JWRI. 2009, 38(2), p. 57-61
DC.title	Development of New Composites; Ceramic Bonded Carbon
DC.creator	Miyamoto, Yoshinari
	Nakamura, Masaharu
	Chen, Weiwu
	Matsumoto, Taihei
	Tojo, Tetsuro
DC.publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2009-12
DC.subject	Ceramic Bonded Carbon
	CBC
	gelcasting
	SiC
	Si3N4
	AlN
DCTERMS.abstract	The new carbon composites which we named Ceramic Bonded Carbon (CBC) consist of carbon grains bonded with ceramic grainboundaries. The CBC structure can protect carbon against oxidation and improve the strength due to the three dimensional network of ceramic grainboundaries. We have developed two processing routes for different CBCs. One is for a SiC/CBC which was fabricated by SiC coating on carbon particles through the reaction of SiO vapor and carbon at 1500°C in vacuum and their consolidation at 2000°C for 20 min using a pulsed electric current sintering. Another approach is for a Si₃N₄/CBC by gelcasting, the preform of CBC and consolidation at 1500°C for 5 min. Both CBC compacts exhibited similar microstructures to the CBC model having the ceramic grainboundaries of SiC and Si₃N₄ with thicknesses below 3μm. They had the bulk density in the range of 2.2 to 2.5 g/㎤, relative density of about 90%, bending strength of 115 to 150 MPa, and electrical resistivity of 60 to 1800 μΩm. These results suggest that the CBCs have a large potential to extend the performance and application of carbon materials.
DC.identifier	10.18910/9257
DC.format	9257
citation_title	Development of New Composites; Ceramic Bonded Carbon
citation_author	Miyamoto, Yoshinari
	Nakamura, Masaharu
	Chen, Weiwu
	Matsumoto, Taihei
	Tojo, Tetsuro
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2009-12
citation_journal_title	Transactions of JWRI
citation_volume	38
citation_issue	2
citation_firstpage	57
citation_lastpage	61
citation_public_url	https://hdl.handle.net/11094/9257
citation_doi_detail	10.18910/9257
citation_doi	https://doi.org/10.18910/9257

Development of New Composites; Ceramic Bonded Carbon

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