低温工学
Online ISSN : 1880-0408
Print ISSN : 0389-2441
ISSN-L : 0389-2441
超電導マグネットに生ずる機械的擾乱 (II)
エポキシのクラックや接着破壊による擾乱
前田 秀明岩佐 幸和
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ジャーナル フリー

1983 年 18 巻 2 号 p. 70-75

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Energy released following cracks and bond failures were measured for an EPON epoxy near 4.2K. Crack events were monitored with an acoustic emission sensor; the energy released by each crack or bond failure was calculated from the temperature rise measured with thermocouples. Cracking was observed to be load dependent; this may account in part for the training phenomenon observed in bringing epoxy-impregnated superconducting magnets to full design field.

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