In:
Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 576 ( 2014-6), p. 177-181
Abstract:
With the rapid development of superconducting technology, electrical properties of insulating materials in the low temperature have recently gained more and more attention. In this paper, the Alternating Current (AC) and negative Direct Current (DC) breakdown strength of polyimide (PI), polyester (PET) and polytetrafluoroethylene (PTFE) have been tested in room temperature and liquid nitrogen environment respectively by using different electrode system. The results show that the negative DC breakdown strength of these three kinds of material in the liquid nitrogen is lower than that in room temperature, and the AC breakdown strength of PTFE and PI in liquid nitrogen has a little increase than that in room temperature,but PET slightly decreases.
Type of Medium:
Online Resource
ISSN:
1662-7482
DOI:
10.4028/www.scientific.net/AMM.576
DOI:
10.4028/www.scientific.net/AMM.576.177
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2014
detail.hit.zdb_id:
2251882-4
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