Oxygen sinks in SiC-based ceramics

Wolfgang Braue; K. Das Chowdhury; Ray Carpenter

Oxygen sinks in SiC-based ceramics

Wolfgang Braue, K. Das Chowdhury, Ray Carpenter

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

During an HREM/AEM investigation, two different oxygen sinks were identified for a variety of SiC-ceramics involving different sintering mechanisms: segregation of oxygen to i) internal interfaces, and ii) `excess-carbon' secondary phases consisting of basically turbostratic graphite and an intermediate amorphous Si-C-O phase. Si-C-O glasses and polycarbosilane-based nonstoichiometric SiC materials (Nicalon fibers) are well suited as model systems to evaluate the structure and the stability range of the amorphous Si-C-O phase in SiC-based ceramics.

Original language	English (US)
Title of host publication	Materials Research Society Symposium - Proceedings
Publisher	Materials Research Society
Pages	275-280
Number of pages	6
Volume	327
State	Published - 1994
Externally published	Yes
Event	Proceedings of the 1993 Fall Meeting of the Materials Research Society - Boston, MA, USA Duration: Nov 29 1993 → Dec 2 1993

Other

Other	Proceedings of the 1993 Fall Meeting of the Materials Research Society
City	Boston, MA, USA
Period	11/29/93 → 12/2/93

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

Cite this

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title = "Oxygen sinks in SiC-based ceramics",

abstract = "During an HREM/AEM investigation, two different oxygen sinks were identified for a variety of SiC-ceramics involving different sintering mechanisms: segregation of oxygen to i) internal interfaces, and ii) `excess-carbon' secondary phases consisting of basically turbostratic graphite and an intermediate amorphous Si-C-O phase. Si-C-O glasses and polycarbosilane-based nonstoichiometric SiC materials (Nicalon fibers) are well suited as model systems to evaluate the structure and the stability range of the amorphous Si-C-O phase in SiC-based ceramics.",

author = "Wolfgang Braue and Chowdhury, {K. Das} and Ray Carpenter",

year = "1994",

language = "English (US)",

volume = "327",

pages = "275--280",

booktitle = "Materials Research Society Symposium - Proceedings",

publisher = "Materials Research Society",

note = "Proceedings of the 1993 Fall Meeting of the Materials Research Society ; Conference date: 29-11-1993 Through 02-12-1993",

}

TY - GEN

T1 - Oxygen sinks in SiC-based ceramics

AU - Braue, Wolfgang

AU - Chowdhury, K. Das

AU - Carpenter, Ray

PY - 1994

Y1 - 1994

N2 - During an HREM/AEM investigation, two different oxygen sinks were identified for a variety of SiC-ceramics involving different sintering mechanisms: segregation of oxygen to i) internal interfaces, and ii) `excess-carbon' secondary phases consisting of basically turbostratic graphite and an intermediate amorphous Si-C-O phase. Si-C-O glasses and polycarbosilane-based nonstoichiometric SiC materials (Nicalon fibers) are well suited as model systems to evaluate the structure and the stability range of the amorphous Si-C-O phase in SiC-based ceramics.

AB - During an HREM/AEM investigation, two different oxygen sinks were identified for a variety of SiC-ceramics involving different sintering mechanisms: segregation of oxygen to i) internal interfaces, and ii) `excess-carbon' secondary phases consisting of basically turbostratic graphite and an intermediate amorphous Si-C-O phase. Si-C-O glasses and polycarbosilane-based nonstoichiometric SiC materials (Nicalon fibers) are well suited as model systems to evaluate the structure and the stability range of the amorphous Si-C-O phase in SiC-based ceramics.

UR - http://www.scopus.com/inward/record.url?scp=0028055455&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028055455&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0028055455

VL - 327

SP - 275

EP - 280

BT - Materials Research Society Symposium - Proceedings

PB - Materials Research Society

T2 - Proceedings of the 1993 Fall Meeting of the Materials Research Society

Y2 - 29 November 1993 through 2 December 1993

ER -

Oxygen sinks in SiC-based ceramics

Abstract

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ASJC Scopus subject areas

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