The stress effect on the superconducting properties of an amorphous Ti/sub 55/Nb/sub 30/Si/sub 15/ alloy

Journal Article · Fri Oct 01 00:00:00 EDT 1982 · Scr. Metall.; (United States)

DOI:https://doi.org/10.1016/0036-9748(82)90083-7· OSTI ID:5111174

Inoue, A; Masumoto, T; Okamoto, S; Takahashi, Y

The effect of mechanical stress on the superconducting transition temperature (T /SUB c/ ) and critical current density (J /SUB c/ ) was examined for an amorphous TI/sub 55/Nb/sub 30/Si/sub 15/ alloy. Uniaxial tension up to high stresses just before fracture and simple bend up to a 180/sup 0/ bend do not change either the T /SUB c/ or the transition width (..delta..T /SUB c/ ), but the J /SUB c/ was linearly reduced with tensile strain and was about 83% as large as the original J /SUB c/ value at a strain of about 1.6%. Further, it was confirmed that the degradation in J /SUB c/ was recoverable upon release of stress. The degradation of J /SUB c/ was inferred to be due to the lowering in fluxoid pinning through the reduction of structural inhomogeneity with applied stress.

• Research Organization: The Research Institute for Iron, Steel and Other Metals, Tohoku University, Sendai 980
• OSTI ID: 5111174
• Journal Information: Scr. Metall.; (United States), Journal Name: Scr. Metall.; (United States) Vol. 16:10; ISSN SCRMB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
BENDING
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
DESTRUCTIVE TESTING
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
MAGNETIC FLUX
MATERIALS TESTING
MECHANICAL PROPERTIES
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
RELAXATION
SILICON ALLOYS
STRESS RELAXATION
STRESSES
SUPERCONDUCTIVITY
TENSILE PROPERTIES
TESTING
THERMODYNAMIC PROPERTIES
TITANIUM ALLOYS
TRANSITION TEMPERATURE