Thermal-Mechanical Properties of Epoxy-Impregnated Bi-2212/Ag Composite

Knowledge of the thermal-mechanical properties of epoxy/superconductor/insulation composite is important for designing, fabricating, and operating epoxy impregnated high field superconducting magnets near their ultimate potentials. We report measurements of the modulus of elasticity, Poisson's...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2015-06, Vol.25 (3), p.1-4
Main Authors: Pei Li, Yang Wang, Godeke, Arno, Liyang Ye, Flanagan, Gene, Tengming Shen
Format: Article
Language:English
Subjects:
Cable insulation
composite material modeling
Magnetomechanical effects
mechanical property
Strain
Stress
Superconducting magnets
Temperature measurement
thermal contraction
Wires
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Summary:Knowledge of the thermal-mechanical properties of epoxy/superconductor/insulation composite is important for designing, fabricating, and operating epoxy impregnated high field superconducting magnets near their ultimate potentials. We report measurements of the modulus of elasticity, Poisson's ratio, and the coefficient of thermal contraction of epoxy-impregnated composite made from the state-of-the-art powder-in-tube multifilamentary Ag/Bi 2 Sr 2 CaCu 2 O x round wire at room temperature and cryogenic temperatures. Stress-strain curves of samples made from single-strand and Rutherford cables were tested under both monotonic and cyclic compressive loads, with single strands insulated using a thin TiO 2 insulation coating and the Rutherford cable insulated with a braided ceramic sleeve.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2014.2376178