Microstructural Stability of SiC/SiC Composites under Dual-Beam Ion Irradiation

Yutai Katoh; Hirotatsu Kishimoto; Masami Ando; Akira Kohyama; Tamaki Shibayama; Heishichiro Takahashi

doi:10.1520/STP10572S

Microstructural Stability of SiC/SiC Composites under Dual-Beam Ion Irradiation

Yutai Katoh, Hirotatsu Kishimoto, Masami Ando, Akira Kohyama, Tamaki Shibayama, Heishichiro Takahashi

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

3 Scopus citations

Abstract

Microstructural evolution of silicon carbide fiber-reinforced silicon carbide matrix composites (SiC/SiC composites) during dual-beam ion irradiation was studied. The composites had been fabricated by means of chemical vapor infiltration (CVI) and polymer impregnation and pyrolysis (PIP) methods using advanced fibers, i.e., Hi-Nicalon™ Type-S and Tyranno™-S A, as well as conventional fibers. Dual-beam ion irradiation was performed to 10 dpa at 873 K and 60appmHe/dpa. Composites with advanced low-oxygen near-stoichiometric SiC fiber with high crystallinity and beta-SiC matrix exhibited superior irradiation resistance, in contrast to that amorphous Si-C-O based fibers and conventional polymer-derived matrix exhibited microstructural instability in association with irradiation-induced crystallization. Pyrolytic carbon deposited as the fiber-matrix (F-M) interphase exhibited irradiation-induced amorphization and the helium co-implantation enhanced it. Post-irradiation heat treatment caused significant microstructural changes across the F-M interphases at temperatures as low as the composites are supposed to retain their mechanical strength.

Original language	English
Title of host publication	Effects of Radiation on Materials
Subtitle of host publication	20th International Symposium
Editors	Stan T. Rosinski, Martin L. Grossbeck, Todd R. Allen, Arvind S. Kumar
Publisher	ASTM International
Pages	786-798
Number of pages	13
ISBN (Electronic)	9780803128781
DOIs	https://doi.org/10.1520/STP10572S
State	Published - 2001
Externally published	Yes
Event	20th International Symposium on Effects of Radiation on Materials 2000 - Williamsburg, United States Duration: Jun 6 2000 → Jun 8 2000

Publication series

Name	ASTM Special Technical Publication
Volume	STP 1405
ISSN (Print)	0066-0558

Conference

Conference	20th International Symposium on Effects of Radiation on Materials 2000
Country/Territory	United States
City	Williamsburg
Period	06/6/00 → 06/8/00

Funding

This work is supported by CREST-ACE program for advanced energy material systems. The CVI-processing was performed by Drs. H. Araki and T. Noda at the National Research Institute of Metals. The dual-beam ion irradiation experiment was carried out with the assistance of Drs. H. Shibata and T. Iwai at the Research Center for Nuclear Science and Technology, the University of Tokyo. The authors are grateful to these people for their valuable help.

Funders	Funder number
CREST-ACE
National Research Institute of Metals
University of Tokyo

Keywords

SiC fiber
SiC/SiC composite
TEM
helium effect
ion irradiation
microstructure

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10.1520/STP10572S

Cite this

Katoh, Y., Kishimoto, H., Ando, M., Kohyama, A., Shibayama, T., & Takahashi, H. (2001). Microstructural Stability of SiC/SiC Composites under Dual-Beam Ion Irradiation. In S. T. Rosinski, M. L. Grossbeck, T. R. Allen, & A. S. Kumar (Eds.), Effects of Radiation on Materials: 20th International Symposium (pp. 786-798). (ASTM Special Technical Publication; Vol. STP 1405). ASTM International. https://doi.org/10.1520/STP10572S

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title = "Microstructural Stability of SiC/SiC Composites under Dual-Beam Ion Irradiation",

abstract = "Microstructural evolution of silicon carbide fiber-reinforced silicon carbide matrix composites (SiC/SiC composites) during dual-beam ion irradiation was studied. The composites had been fabricated by means of chemical vapor infiltration (CVI) and polymer impregnation and pyrolysis (PIP) methods using advanced fibers, i.e., Hi-Nicalon{\texttrademark} Type-S and Tyranno{\texttrademark}-S A, as well as conventional fibers. Dual-beam ion irradiation was performed to 10 dpa at 873 K and 60appmHe/dpa. Composites with advanced low-oxygen near-stoichiometric SiC fiber with high crystallinity and beta-SiC matrix exhibited superior irradiation resistance, in contrast to that amorphous Si-C-O based fibers and conventional polymer-derived matrix exhibited microstructural instability in association with irradiation-induced crystallization. Pyrolytic carbon deposited as the fiber-matrix (F-M) interphase exhibited irradiation-induced amorphization and the helium co-implantation enhanced it. Post-irradiation heat treatment caused significant microstructural changes across the F-M interphases at temperatures as low as the composites are supposed to retain their mechanical strength.",

keywords = "SiC fiber, SiC/SiC composite, TEM, helium effect, ion irradiation, microstructure",

author = "Yutai Katoh and Hirotatsu Kishimoto and Masami Ando and Akira Kohyama and Tamaki Shibayama and Heishichiro Takahashi",

note = "Publisher Copyright: {\textcopyright} 2001 by ASTM International.; 20th International Symposium on Effects of Radiation on Materials 2000 ; Conference date: 06-06-2000 Through 08-06-2000",

year = "2001",

doi = "10.1520/STP10572S",

language = "English",

series = "ASTM Special Technical Publication",

publisher = "ASTM International",

pages = "786--798",

editor = "Rosinski, {Stan T.} and Grossbeck, {Martin L.} and Allen, {Todd R.} and Kumar, {Arvind S.}",

booktitle = "Effects of Radiation on Materials",

}

Katoh, Y, Kishimoto, H, Ando, M, Kohyama, A, Shibayama, T & Takahashi, H 2001, Microstructural Stability of SiC/SiC Composites under Dual-Beam Ion Irradiation. in ST Rosinski, ML Grossbeck, TR Allen & AS Kumar (eds), Effects of Radiation on Materials: 20th International Symposium. ASTM Special Technical Publication, vol. STP 1405, ASTM International, pp. 786-798, 20th International Symposium on Effects of Radiation on Materials 2000, Williamsburg, United States, 06/6/00. https://doi.org/10.1520/STP10572S

Microstructural Stability of SiC/SiC Composites under Dual-Beam Ion Irradiation. / Katoh, Yutai; Kishimoto, Hirotatsu; Ando, Masami et al.
Effects of Radiation on Materials: 20th International Symposium. ed. / Stan T. Rosinski; Martin L. Grossbeck; Todd R. Allen; Arvind S. Kumar. ASTM International, 2001. p. 786-798 (ASTM Special Technical Publication; Vol. STP 1405).

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

TY - GEN

T1 - Microstructural Stability of SiC/SiC Composites under Dual-Beam Ion Irradiation

AU - Katoh, Yutai

AU - Kishimoto, Hirotatsu

AU - Ando, Masami

AU - Kohyama, Akira

AU - Shibayama, Tamaki

AU - Takahashi, Heishichiro

PY - 2001

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N2 - Microstructural evolution of silicon carbide fiber-reinforced silicon carbide matrix composites (SiC/SiC composites) during dual-beam ion irradiation was studied. The composites had been fabricated by means of chemical vapor infiltration (CVI) and polymer impregnation and pyrolysis (PIP) methods using advanced fibers, i.e., Hi-Nicalon™ Type-S and Tyranno™-S A, as well as conventional fibers. Dual-beam ion irradiation was performed to 10 dpa at 873 K and 60appmHe/dpa. Composites with advanced low-oxygen near-stoichiometric SiC fiber with high crystallinity and beta-SiC matrix exhibited superior irradiation resistance, in contrast to that amorphous Si-C-O based fibers and conventional polymer-derived matrix exhibited microstructural instability in association with irradiation-induced crystallization. Pyrolytic carbon deposited as the fiber-matrix (F-M) interphase exhibited irradiation-induced amorphization and the helium co-implantation enhanced it. Post-irradiation heat treatment caused significant microstructural changes across the F-M interphases at temperatures as low as the composites are supposed to retain their mechanical strength.

AB - Microstructural evolution of silicon carbide fiber-reinforced silicon carbide matrix composites (SiC/SiC composites) during dual-beam ion irradiation was studied. The composites had been fabricated by means of chemical vapor infiltration (CVI) and polymer impregnation and pyrolysis (PIP) methods using advanced fibers, i.e., Hi-Nicalon™ Type-S and Tyranno™-S A, as well as conventional fibers. Dual-beam ion irradiation was performed to 10 dpa at 873 K and 60appmHe/dpa. Composites with advanced low-oxygen near-stoichiometric SiC fiber with high crystallinity and beta-SiC matrix exhibited superior irradiation resistance, in contrast to that amorphous Si-C-O based fibers and conventional polymer-derived matrix exhibited microstructural instability in association with irradiation-induced crystallization. Pyrolytic carbon deposited as the fiber-matrix (F-M) interphase exhibited irradiation-induced amorphization and the helium co-implantation enhanced it. Post-irradiation heat treatment caused significant microstructural changes across the F-M interphases at temperatures as low as the composites are supposed to retain their mechanical strength.

KW - SiC fiber

KW - SiC/SiC composite

KW - TEM

KW - helium effect

KW - ion irradiation

KW - microstructure

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DO - 10.1520/STP10572S

M3 - Conference contribution

AN - SCOPUS:85164933580

T3 - ASTM Special Technical Publication

SP - 786

EP - 798

BT - Effects of Radiation on Materials

A2 - Rosinski, Stan T.

A2 - Grossbeck, Martin L.

A2 - Allen, Todd R.

A2 - Kumar, Arvind S.

PB - ASTM International

T2 - 20th International Symposium on Effects of Radiation on Materials 2000

Y2 - 6 June 2000 through 8 June 2000

ER -

Katoh Y, Kishimoto H, Ando M, Kohyama A, Shibayama T, Takahashi H. Microstructural Stability of SiC/SiC Composites under Dual-Beam Ion Irradiation. In Rosinski ST, Grossbeck ML, Allen TR, Kumar AS, editors, Effects of Radiation on Materials: 20th International Symposium. ASTM International. 2001. p. 786-798. (ASTM Special Technical Publication). doi: 10.1520/STP10572S

Microstructural Stability of SiC/SiC Composites under Dual-Beam Ion Irradiation

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