Microstructure changes of pure copper after irradiation under periodic temperature variation

Yuya Sumino; Hideo Watanabe; Naoaki Yoshida

doi:10.2320/jinstmet.76.482

Microstructure changes of pure copper after irradiation under periodic temperature variation

Yuya Sumino, Hideo Watanabe, Naoaki Yoshida

Division of Nuclear Fusion Dynamics

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

Abstract

In order to investigate the effect of periodic temperature irradiation on pure copper, heavy ion irradiation under constant temperature and periodic temperature were performed. Specimens were irradiated up to 10 dpa in the temperature range of 373-673 K. The formation and growth of voids were suppressed by the periodic temperature irradiation. In comparison with the constant temperature irradiation at 673 K, number density of void decreased by the periodic temperature irradiation. This result was explained by the disappearance of small vacancy-type clusters (formed at 673 K) during successive irradiation at 473 K.

Original language	English
Pages (from-to)	482-488
Number of pages	7
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	76
Issue number	8
DOIs	https://doi.org/10.2320/jinstmet.76.482
Publication status	Published - Aug 2012

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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title = "Microstructure changes of pure copper after irradiation under periodic temperature variation",

abstract = "In order to investigate the effect of periodic temperature irradiation on pure copper, heavy ion irradiation under constant temperature and periodic temperature were performed. Specimens were irradiated up to 10 dpa in the temperature range of 373-673 K. The formation and growth of voids were suppressed by the periodic temperature irradiation. In comparison with the constant temperature irradiation at 673 K, number density of void decreased by the periodic temperature irradiation. This result was explained by the disappearance of small vacancy-type clusters (formed at 673 K) during successive irradiation at 473 K.",

author = "Yuya Sumino and Hideo Watanabe and Naoaki Yoshida",

year = "2012",

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doi = "10.2320/jinstmet.76.482",

language = "English",

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pages = "482--488",

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AU - Sumino, Yuya

AU - Watanabe, Hideo

AU - Yoshida, Naoaki

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N2 - In order to investigate the effect of periodic temperature irradiation on pure copper, heavy ion irradiation under constant temperature and periodic temperature were performed. Specimens were irradiated up to 10 dpa in the temperature range of 373-673 K. The formation and growth of voids were suppressed by the periodic temperature irradiation. In comparison with the constant temperature irradiation at 673 K, number density of void decreased by the periodic temperature irradiation. This result was explained by the disappearance of small vacancy-type clusters (formed at 673 K) during successive irradiation at 473 K.

AB - In order to investigate the effect of periodic temperature irradiation on pure copper, heavy ion irradiation under constant temperature and periodic temperature were performed. Specimens were irradiated up to 10 dpa in the temperature range of 373-673 K. The formation and growth of voids were suppressed by the periodic temperature irradiation. In comparison with the constant temperature irradiation at 673 K, number density of void decreased by the periodic temperature irradiation. This result was explained by the disappearance of small vacancy-type clusters (formed at 673 K) during successive irradiation at 473 K.

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JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

IS - 8

ER -

Microstructure changes of pure copper after irradiation under periodic temperature variation

Abstract

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