Effect of He pre-implantation and neutron irradiation on mechanical properties of SiC/SiC composite

Shuhei Nogami; Akira Hasegawa; Lance L. Snead; Russell H. Jones; Katsunori Abe

doi:10.1016/j.jnucmat.2004.04.121

Effect of He pre-implantation and neutron irradiation on mechanical properties of SiC/SiC composite

Shuhei Nogami
, Akira Hasegawa
, Lance L. Snead
, Russell H. Jones
, Katsunori Abe

Materials Science and Engineering

Tohoku University
Hitachi, Ltd.
Pacific Northwest National Laboratory

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

14 Scopus citations

Abstract

Mechanical property changes of SiC/SiC (Hi-Nicalon/C/SiC) composite caused by uniform He pre-implantation up to about 170 at.ppm at 400-800 °C followed by neutron irradiation up to about 7.7×10²⁵ n/m² (E_n0.1 MeV) at 800 °C in HFIR were investigated by the three-point bend tests and nano-indentation tests. Degradation of the composite bend properties due to neutron irradiation was observed. The hardness increased after neutron irradiation for both the SiC-matrix and the Hi-Nicalon fiber. There was almost no change in the elastic modulus of the SiC-matrix, but there was an increase in the modulus of the Hi-Nicalon fiber after neutron irradiation. He pre-implantation had almost a negligible effect on the mechanical properties of the composite specimen.

Original language	English
Pages (from-to)	577-581
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	329-333
Issue number	1-3 PART A
DOIs	https://doi.org/10.1016/j.jnucmat.2004.04.121
State	Published - Aug 1 2004
Event	Proceedings of the 11th Conference on Fusion Research - Kyoto, Japan Duration: Dec 7 2003 → Dec 12 2003

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@article{3077d555f5af4363aeb772fab71e61a4,

title = "Effect of He pre-implantation and neutron irradiation on mechanical properties of SiC/SiC composite",

abstract = "Mechanical property changes of SiC/SiC (Hi-Nicalon/C/SiC) composite caused by uniform He pre-implantation up to about 170 at.ppm at 400-800 °C followed by neutron irradiation up to about 7.7×1025 n/m2 (En0.1 MeV) at 800 °C in HFIR were investigated by the three-point bend tests and nano-indentation tests. Degradation of the composite bend properties due to neutron irradiation was observed. The hardness increased after neutron irradiation for both the SiC-matrix and the Hi-Nicalon fiber. There was almost no change in the elastic modulus of the SiC-matrix, but there was an increase in the modulus of the Hi-Nicalon fiber after neutron irradiation. He pre-implantation had almost a negligible effect on the mechanical properties of the composite specimen.",

author = "Shuhei Nogami and Akira Hasegawa and Snead, \{Lance L.\} and Jones, \{Russell H.\} and Katsunori Abe",

year = "2004",

month = aug,

day = "1",

doi = "10.1016/j.jnucmat.2004.04.121",

language = "English",

volume = "329-333",

pages = "577--581",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

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 - Effect of He pre-implantation and neutron irradiation on mechanical properties of SiC/SiC composite

AU - Nogami, Shuhei

AU - Hasegawa, Akira

AU - Snead, Lance L.

AU - Jones, Russell H.

AU - Abe, Katsunori

PY - 2004/8/1

Y1 - 2004/8/1

N2 - Mechanical property changes of SiC/SiC (Hi-Nicalon/C/SiC) composite caused by uniform He pre-implantation up to about 170 at.ppm at 400-800 °C followed by neutron irradiation up to about 7.7×1025 n/m2 (En0.1 MeV) at 800 °C in HFIR were investigated by the three-point bend tests and nano-indentation tests. Degradation of the composite bend properties due to neutron irradiation was observed. The hardness increased after neutron irradiation for both the SiC-matrix and the Hi-Nicalon fiber. There was almost no change in the elastic modulus of the SiC-matrix, but there was an increase in the modulus of the Hi-Nicalon fiber after neutron irradiation. He pre-implantation had almost a negligible effect on the mechanical properties of the composite specimen.

AB - Mechanical property changes of SiC/SiC (Hi-Nicalon/C/SiC) composite caused by uniform He pre-implantation up to about 170 at.ppm at 400-800 °C followed by neutron irradiation up to about 7.7×1025 n/m2 (En0.1 MeV) at 800 °C in HFIR were investigated by the three-point bend tests and nano-indentation tests. Degradation of the composite bend properties due to neutron irradiation was observed. The hardness increased after neutron irradiation for both the SiC-matrix and the Hi-Nicalon fiber. There was almost no change in the elastic modulus of the SiC-matrix, but there was an increase in the modulus of the Hi-Nicalon fiber after neutron irradiation. He pre-implantation had almost a negligible effect on the mechanical properties of the composite specimen.

UR - https://www.scopus.com/pages/publications/3342912344

U2 - 10.1016/j.jnucmat.2004.04.121

DO - 10.1016/j.jnucmat.2004.04.121

M3 - Conference article

AN - SCOPUS:3342912344

SN - 0022-3115

VL - 329-333

SP - 577

EP - 581

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 -

Effect of He pre-implantation and neutron irradiation on mechanical properties of SiC/SiC composite

Abstract

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