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Thermal-mechanical properties of epoxy-impregnated Bi-2212/Ag composite

Journal Article · · IEEE Transactions on Applied Superconductivity
 [1];  [2];  [3];  [4];  [5];  [1]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Illinois Institute of Technology, Chicago, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); National High Magnetic Field Lab., Tallahassee, FL (United States)
  4. North Carolina State Univ., Raleigh, NC (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  5. Muons Inc., Batavia, IL (United States)
+ Show Author Affiliations
In this study, 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/Bi2Sr2CaCu2Ox 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 TiO2 insulation coating and the Rutherford cable insulated with a braided ceramic sleeve.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1234880
Report Number(s):
FERMILAB-PUB--14-475-TD
Journal Information:
IEEE Transactions on Applied Superconductivity, Journal Name: IEEE Transactions on Applied Superconductivity Journal Issue: 3 Vol. 25; ISSN 1051-8223
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)Copyright Statement
Country of Publication:
United States
Language:
English

Cited By (1)

Strain induced irreversible critical current degradation in highly dense Bi-2212 round wire journal April 2015

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Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
Bi-2212/Ag
composite material modeling
mechanical property
strain
thermal contraction