Study of helium bubble formation in SiCf/PyC/β-SiC composites by dual-beam irradiation

T. S. Duh; K. M. Yin; J. Y. Yan; P. C. Fang; C. W. Chen; J. J. Kai; F. R. Chen; Y. Katoh; A. Kohyama

doi:10.1016/j.jnucmat.2004.04.218

Study of helium bubble formation in SiCf/PyC/β-SiC composites by dual-beam irradiation

T. S. Duh, K. M. Yin, J. Y. Yan, P. C. Fang, C. W. Chen, J. J. Kai, F. R. Chen, Y. Katoh, A. Kohyama

Research output: Contribution to journal › Conference article › peer-review

9 Scopus citations

Abstract

The formation of helium bubbles in the advanced SiC composites, Tyranno-SA SiC/PyC/β-SiC (TSA) and Hi-Nicalon Type-S SiC/PyC/β-SiC (HNS), implanted with helium and irradiated by dual-beam was investigated. Post-implantation annealing was carried out at 1000/1200/1400 °C, and dual-beam irradiation at 800/1000 °C. For He implantation, helium bubbles were observed only in the SiC matrix for annealing temperatures ≥1200 °C. For dual-beam irradiation, no He bubbles were observed for a dose of 10 dpa, but for doses up to 100 dpa, He bubbles were observed in the matrix. Under these irradiation conditions, the TSA and HNS fibers exhibited good microstructural stability against helium influence. In addition, possible diffusion modes were suggested here to describe the diffusion behavior of helium in SiC in different temperature regions.

Original language	English
Pages (from-to)	518-523
Number of pages	6
Journal	Journal of Nuclear Materials
Volume	329-333
Issue number	1-3 PART A
DOIs	https://doi.org/10.1016/j.jnucmat.2004.04.218
State	Published - Aug 1 2004
Externally published	Yes
Event	Proceedings of the 11th Conference on Fusion Research - Kyoto, Japan Duration: Dec 7 2003 → Dec 12 2003

Funding

This study is financially supported by the National Science Council, ROC under contract number of NSC-92-2212-E-007-028.

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10.1016/j.jnucmat.2004.04.218

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title = "Study of helium bubble formation in SiCf/PyC/β-SiC composites by dual-beam irradiation",

abstract = "The formation of helium bubbles in the advanced SiC composites, Tyranno-SA SiC/PyC/β-SiC (TSA) and Hi-Nicalon Type-S SiC/PyC/β-SiC (HNS), implanted with helium and irradiated by dual-beam was investigated. Post-implantation annealing was carried out at 1000/1200/1400 °C, and dual-beam irradiation at 800/1000 °C. For He implantation, helium bubbles were observed only in the SiC matrix for annealing temperatures ≥1200 °C. For dual-beam irradiation, no He bubbles were observed for a dose of 10 dpa, but for doses up to 100 dpa, He bubbles were observed in the matrix. Under these irradiation conditions, the TSA and HNS fibers exhibited good microstructural stability against helium influence. In addition, possible diffusion modes were suggested here to describe the diffusion behavior of helium in SiC in different temperature regions.",

author = "Duh, {T. S.} and Yin, {K. M.} and Yan, {J. Y.} and Fang, {P. C.} and Chen, {C. W.} and Kai, {J. J.} and Chen, {F. R.} and Y. Katoh and A. Kohyama",

year = "2004",

month = aug,

day = "1",

doi = "10.1016/j.jnucmat.2004.04.218",

language = "English",

volume = "329-333",

pages = "518--523",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

number = "1-3 PART A",

note = "Proceedings of the 11th Conference on Fusion Research ; Conference date: 07-12-2003 Through 12-12-2003",

}

TY - JOUR

T1 - Study of helium bubble formation in SiCf/PyC/β-SiC composites by dual-beam irradiation

AU - Duh, T. S.

AU - Yin, K. M.

AU - Yan, J. Y.

AU - Fang, P. C.

AU - Chen, C. W.

AU - Kai, J. J.

AU - Chen, F. R.

AU - Katoh, Y.

AU - Kohyama, A.

PY - 2004/8/1

Y1 - 2004/8/1

N2 - The formation of helium bubbles in the advanced SiC composites, Tyranno-SA SiC/PyC/β-SiC (TSA) and Hi-Nicalon Type-S SiC/PyC/β-SiC (HNS), implanted with helium and irradiated by dual-beam was investigated. Post-implantation annealing was carried out at 1000/1200/1400 °C, and dual-beam irradiation at 800/1000 °C. For He implantation, helium bubbles were observed only in the SiC matrix for annealing temperatures ≥1200 °C. For dual-beam irradiation, no He bubbles were observed for a dose of 10 dpa, but for doses up to 100 dpa, He bubbles were observed in the matrix. Under these irradiation conditions, the TSA and HNS fibers exhibited good microstructural stability against helium influence. In addition, possible diffusion modes were suggested here to describe the diffusion behavior of helium in SiC in different temperature regions.

AB - The formation of helium bubbles in the advanced SiC composites, Tyranno-SA SiC/PyC/β-SiC (TSA) and Hi-Nicalon Type-S SiC/PyC/β-SiC (HNS), implanted with helium and irradiated by dual-beam was investigated. Post-implantation annealing was carried out at 1000/1200/1400 °C, and dual-beam irradiation at 800/1000 °C. For He implantation, helium bubbles were observed only in the SiC matrix for annealing temperatures ≥1200 °C. For dual-beam irradiation, no He bubbles were observed for a dose of 10 dpa, but for doses up to 100 dpa, He bubbles were observed in the matrix. Under these irradiation conditions, the TSA and HNS fibers exhibited good microstructural stability against helium influence. In addition, possible diffusion modes were suggested here to describe the diffusion behavior of helium in SiC in different temperature regions.

UR - http://www.scopus.com/inward/record.url?scp=3342974823&partnerID=8YFLogxK

U2 - 10.1016/j.jnucmat.2004.04.218

DO - 10.1016/j.jnucmat.2004.04.218

M3 - Conference article

AN - SCOPUS:3342974823

SN - 0022-3115

VL - 329-333

SP - 518

EP - 523

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1-3 PART A

T2 - Proceedings of the 11th Conference on Fusion Research

Y2 - 7 December 2003 through 12 December 2003

ER -

Study of helium bubble formation in SiCf/PyC/β-SiC composites by dual-beam irradiation

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