Investigation of cable insulation and thermo-mechanical properties of epoxy impregnated Nb/sub 3/Sn composite

Author

Chichili, D.R. ; Arkan, T.T. ; Ozelis, J.P. ; Terechkine, I.

Author_Institution

Fermi Nat. Accel. Lab., Batavia, IL, USA

Volume

10

Issue

1

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

1317

Lastpage

1320

Abstract

Within the framework of the Fermilab high field magnet program, cable insulation and thermo-mechanical properties of epoxy impregnated Nb/sub 3/Sn composite were studied. As a part of cable insulation development, a new wrappable ceramic insulation was investigated to understand its mechanical properties and its influence on magnet fabrication technology. Measurements of modulus of elasticity and Poisson´s ratio of Nb/sub 3/Sn composite made out of ten-stack samples were performed under compression at room temperature and at 4.2 K. The results from both monotonic and cyclic loading tests are presented. Finally, measurements of the coefficient of thermal contraction for the composite using strain gauges is discussed.

Keywords

cable insulation; ceramic insulation; mechanical properties; niobium alloys; superconducting magnets; tin alloys; 4.2 K; Fermilab high field magnet program; Nb/sub 3/Sn; Poisson´s ratio; cable insulation; epoxy impregnated Nb/sub 3/Sn composite; modulus of elasticity; thermal contraction; thermo-mechanical properties; wrappable ceramic insulation; Cable insulation; Ceramics; Fabrication; Magnetic properties; Magnetoelasticity; Mechanical factors; Niobium; Strain measurement; Thermomechanical processes; Tin;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.828478

Filename

828478