Dielectric behaviour of insulating materials under liquid nitrogen

Abstract

In practical HTSC devices, equipment and systems use of both LN/sub 2/ (liquid nitrogen) and CGN/sub 2/ (cryogenic nitrogen) is almost essential. Both LN/sub 2/ and CGN/sub 2/ are used not only as a coolant but also as an insulating material. In the present study an attempt has been made to study the dielectric behavior of solid insulating materials dipped in LN/sub 2/ as regards to change in loss index.