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Damage structures in Si3N4–Sic films and stainless steel irradiated by intense pulsed light-ion beam

Published online by Cambridge University Press:  09 March 2009

Kiichiro Kamata ,
Kiyoshi Yatsui ,
Masayoshi Kanno ,
Naoyoshi Aizawa  and
Minoru Moriyamat
Kiichiro Kamata
Affiliation:
Faculty of Engineering, Technological University of Nagaoka, Nagaoka, 940-21, Japan
Kiyoshi Yatsui
Affiliation:
Faculty of Engineering, Technological University of Nagaoka, Nagaoka, 940-21, Japan
Masayoshi Kanno
Affiliation:
Faculty of Engineering, Technological University of Nagaoka, Nagaoka, 940-21, Japan
Naoyoshi Aizawa
Affiliation:
Faculty of Engineering, Technological University of Nagaoka, Nagaoka, 940-21, Japan
Minoru Moriyamat
Affiliation:
Faculty of Engineering, Technological University of Nagaoka, Nagaoka, 940-21, Japan
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Abstract

As the input power and energy content of Tokamaks are increased, the erosion rate of the first wall becomes larger, and a thick coating or cladding of low atomic number (Z) materials will be needed. Recently, the present authors prepared Si3N4–SiC films at alow temperature of 400°C by a plasma CVD method for the application to coating materials having high strength and wear resistance on metals and glasses. In this study, irradiation damage of the Si3N4–SiC films and 316 stainless steel (SUS-316) was investigated for the application to the first wall materials in a fusion reactor. The damage studies employed an intense pulsed light-ion beam (LIB) from the “ETIGO-I” device.

Type
Research Article
Information
Laser and Particle Beams , Volume 5 , Issue 3 , August 1987 , pp. 495 - 504
Copyright
Copyright © Cambridge University Press 1987

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