Examinations on Impregnating Epoxy Resins Used for Superconducting Coils

DOI Web Site Web Site

Bibliographic Information

Other Title
  • 超電導コイル含浸用エポキシ樹脂に関する検討
  • チョウデンドウ コイル ガンシンヨウ エポキシ ジュシ ニ カンスル ケントウ

Search this article

Abstract

In order to find out the most appropriate impregnating epoxy resin for superconducting coils, three types of epoxy resin were examined from various points of view. Those epoxy resins were amine curing type A, anhydride curing type B with tertiary amine accelerator and anhydride curing type C without accelerator.<br>From the examinations, resin A was found to be more superior in thermal shock resistance against cryogenic temperature than resins B and C because of its high tensile strength at cryogenic temperature and its small cure shrinkage. However, the test coil impregnated with resin A experienced more repeated premature quenches than the coil impregnated with resin C. This result might be explained by the crackings which started from microscopic defects, and which occured gradually in resin A compared with resins B and C. Moreover, the viscosity of resin A increased more rapidly during the impregnating process than that of resins B and C, so that resins B and C appear to be more appropriate for large superconducting coils than resin A.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top