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Electrical and mechanical properties of thermoplastic polyimide‐insulated coaxial cable for use under high‐temperature and radioactive conditions
Author(s) -
Mitsui Hisayasu,
Shiono Takeo,
Ushiki Masataka,
Sato Yoshimi,
Sudo Shigeaki,
Ono ShinIchi,
Murase Tomotaka
Publication year - 1995
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391150802
Subject(s) - polyimide , materials science , thermoplastic , composite material , coaxial , coaxial cable , irradiation , electrical engineering , engineering , conductor , physics , layer (electronics) , nuclear physics
Thermoplastic polyimide‐insulated coaxial cable for use under high‐temperature and radioactive conditions was developed and its electrical and mechanical properties were evaluated in comparison with cable insulated with polyetheretherketone which is known for its superior heat‐ and radiation‐resistant characteristics. According to experiments, the electrical properties of thermoplastic polyimide‐insulated cable are stable over a wider temperature range in comparison with polyetheretherketone‐insulated cable even after 1.2 MGy of γ‐ray irradiation and 6‐months heat aging at 220°C, indicating that thermoplastic polyimide is superior for use as a heat‐ and radiation‐resistant cable‐covering material. The electrical properties of TPI cable observed, were within actual use requirements, even under γ‐ray irradiation up to 1000 Gy/h.