Effect of neutron irradiation on fracture resistance of advanced SiC/SiC composites

Kazumi Ozawa; Yutai Katoh; Takashi Nozawa; Lance L. Snead

doi:10.1016/j.jnucmat.2010.12.085

Effect of neutron irradiation on fracture resistance of advanced SiC/SiC composites

Kazumi Ozawa
, Yutai Katoh
, Takashi Nozawa
, Lance L. Snead

Materials Science and Engineering

Oak Ridge National Laboratory
Japan Atomic Energy Agency

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

In order to identify the neutron irradiation effects on fracture resistance of advanced SiC/SiC composites, unloading-reloading single edge notched bend tests were conducted and an analytical model based on non-linear fracture mechanics was applied. As a result of the analysis, energy release rate contributed by macro-crack initiation of 3.1 kJ/m² for both unirradiated and irradiated advanced SiC/SiC composites (Hi-Nicalon Type-S (0°/90° plain woven)/multilayer/chemically vapor infiltration) is estimated. This result indicates no significant degradation in fracture resistance after neutron irradiation to 5.9 × 10²⁵n/m ² at 800 °C.

Original language	English
Pages (from-to)	411-415
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	417
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2010.12.085
State	Published - Oct 1 2011

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title = "Effect of neutron irradiation on fracture resistance of advanced SiC/SiC composites",

abstract = "In order to identify the neutron irradiation effects on fracture resistance of advanced SiC/SiC composites, unloading-reloading single edge notched bend tests were conducted and an analytical model based on non-linear fracture mechanics was applied. As a result of the analysis, energy release rate contributed by macro-crack initiation of 3.1 kJ/m2 for both unirradiated and irradiated advanced SiC/SiC composites (Hi-Nicalon Type-S (0°/90° plain woven)/multilayer/chemically vapor infiltration) is estimated. This result indicates no significant degradation in fracture resistance after neutron irradiation to 5.9 × 1025n/m 2 at 800 °C.",

author = "Kazumi Ozawa and Yutai Katoh and Takashi Nozawa and Snead, \{Lance L.\}",

year = "2011",

month = oct,

day = "1",

doi = "10.1016/j.jnucmat.2010.12.085",

language = "English",

volume = "417",

pages = "411--415",

journal = "Journal of Nuclear Materials",

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T1 - Effect of neutron irradiation on fracture resistance of advanced SiC/SiC composites

AU - Ozawa, Kazumi

AU - Katoh, Yutai

AU - Nozawa, Takashi

AU - Snead, Lance L.

PY - 2011/10/1

Y1 - 2011/10/1

N2 - In order to identify the neutron irradiation effects on fracture resistance of advanced SiC/SiC composites, unloading-reloading single edge notched bend tests were conducted and an analytical model based on non-linear fracture mechanics was applied. As a result of the analysis, energy release rate contributed by macro-crack initiation of 3.1 kJ/m2 for both unirradiated and irradiated advanced SiC/SiC composites (Hi-Nicalon Type-S (0°/90° plain woven)/multilayer/chemically vapor infiltration) is estimated. This result indicates no significant degradation in fracture resistance after neutron irradiation to 5.9 × 1025n/m 2 at 800 °C.

AB - In order to identify the neutron irradiation effects on fracture resistance of advanced SiC/SiC composites, unloading-reloading single edge notched bend tests were conducted and an analytical model based on non-linear fracture mechanics was applied. As a result of the analysis, energy release rate contributed by macro-crack initiation of 3.1 kJ/m2 for both unirradiated and irradiated advanced SiC/SiC composites (Hi-Nicalon Type-S (0°/90° plain woven)/multilayer/chemically vapor infiltration) is estimated. This result indicates no significant degradation in fracture resistance after neutron irradiation to 5.9 × 1025n/m 2 at 800 °C.

UR - https://www.scopus.com/pages/publications/80053589782

U2 - 10.1016/j.jnucmat.2010.12.085

DO - 10.1016/j.jnucmat.2010.12.085

M3 - Article

AN - SCOPUS:80053589782

SN - 0022-3115

VL - 417

SP - 411

EP - 415

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1-3

ER -

Effect of neutron irradiation on fracture resistance of advanced SiC/SiC composites

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