The influence of sintering additives on the irradiation resistance of NITE SiC

Takaaki Koyanagi; Sosuke Kondo; Tatsuya Hinoki

doi:10.1016/j.jnucmat.2010.12.181

The influence of sintering additives on the irradiation resistance of NITE SiC

Takaaki Koyanagi, Sosuke Kondo, Tatsuya Hinoki

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

17 Citations (Scopus)

Abstract

The effects of sintering additives on irradiation swelling and modulus for monolithic NITE SiC was studied using 5.1 MeV Si²⁺ ion irradiation up to 5 dpa at 553-1273 K. The elastic modulus of NITE SiC decreased less than ∼7% in the highest damage case of 553 K, 3 dpa, indicating that the additives did not negatively affect the modulus of irradiated NITE SiC. A sample containing 9% additives showed higher swelling rates than high purity CVD SiC at lower temperatures. At 553 K, 5 dpa, the swelling of NITE SiC (9 wt.%) was twice as large as that of CVD SiC. Analysis of the electron diffraction patterns showed amorphization of the secondary phase, which is likely a primary reason for the increased swelling.

Original language	English
Pages (from-to)	435-439
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	417
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2010.12.181
Publication status	Published - 2011 Oct 1
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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10.1016/j.jnucmat.2010.12.181

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title = "The influence of sintering additives on the irradiation resistance of NITE SiC",

abstract = "The effects of sintering additives on irradiation swelling and modulus for monolithic NITE SiC was studied using 5.1 MeV Si2+ ion irradiation up to 5 dpa at 553-1273 K. The elastic modulus of NITE SiC decreased less than ∼7% in the highest damage case of 553 K, 3 dpa, indicating that the additives did not negatively affect the modulus of irradiated NITE SiC. A sample containing 9% additives showed higher swelling rates than high purity CVD SiC at lower temperatures. At 553 K, 5 dpa, the swelling of NITE SiC (9 wt.%) was twice as large as that of CVD SiC. Analysis of the electron diffraction patterns showed amorphization of the secondary phase, which is likely a primary reason for the increased swelling.",

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AU - Koyanagi, Takaaki

AU - Kondo, Sosuke

AU - Hinoki, Tatsuya

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Y1 - 2011/10/1

N2 - The effects of sintering additives on irradiation swelling and modulus for monolithic NITE SiC was studied using 5.1 MeV Si2+ ion irradiation up to 5 dpa at 553-1273 K. The elastic modulus of NITE SiC decreased less than ∼7% in the highest damage case of 553 K, 3 dpa, indicating that the additives did not negatively affect the modulus of irradiated NITE SiC. A sample containing 9% additives showed higher swelling rates than high purity CVD SiC at lower temperatures. At 553 K, 5 dpa, the swelling of NITE SiC (9 wt.%) was twice as large as that of CVD SiC. Analysis of the electron diffraction patterns showed amorphization of the secondary phase, which is likely a primary reason for the increased swelling.

AB - The effects of sintering additives on irradiation swelling and modulus for monolithic NITE SiC was studied using 5.1 MeV Si2+ ion irradiation up to 5 dpa at 553-1273 K. The elastic modulus of NITE SiC decreased less than ∼7% in the highest damage case of 553 K, 3 dpa, indicating that the additives did not negatively affect the modulus of irradiated NITE SiC. A sample containing 9% additives showed higher swelling rates than high purity CVD SiC at lower temperatures. At 553 K, 5 dpa, the swelling of NITE SiC (9 wt.%) was twice as large as that of CVD SiC. Analysis of the electron diffraction patterns showed amorphization of the secondary phase, which is likely a primary reason for the increased swelling.

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The influence of sintering additives on the irradiation resistance of NITE SiC

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