Critical current variation as a function of transverse stress of Bi-2212 Rutherford cables

Conference · Sun Sep 10 04:00:00 EDT 2000

OSTI ID:782473

Dietderich, Daniel R ^[1]; Scanlan, R M; Hasegawa, Takayo; Aoki, Yuji; Sokolowski, Robert S; Motowidlo, Leszck R

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1. LBNL Library

Transverse loading experiments on wire has shown that a significant drop in critical current occurs for stresses greater than 50 MPa. However, many high-energy physics applications require that the Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} conductor withstand stresses greater than 100 MPa without permanent degradation. Therefore, a study of epoxy impregnated cables, identical to those used in accelerator magnet applications, has been performed. This work presents the first results of Rutherford cables of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} with transverse stress. The results show that the cable can withstand stresses up to 60 MPa with a strain of about 0.3 % for the face loading orientation and 100 MPa for the edge loading orientation.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 782473
• Report Number(s): LBNL--45179; SC-MAG 705
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH OXIDES
CABLES
CALCIUM OXIDES
COPPER OXIDES
CRITICAL CURRENT
EPOXIDES
STRESSES
STRONTIUM OXIDES
SUPERCONDUCTORS