作者: H Hillmann
DOI: 10.1088/0953-2048/12/6/304
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摘要: The current density of commercial superconductors like NbTi can be optimized by a sequence different metallurgical treatments. At present the role normal conducting -Ti as flux line pins is well understood. influence treatment on dramatic change during fabrication process was not included into pinning models until now. A modified model basis plastically deformable precipitates tries to explain this strange behaviour. agrees with previously shown effects `matching', decrease and increase again after conductors are subjected heavy cold work flattened form rectangular shape. anomalous anisotropy also explained using model. Transmission electron microscope images Lee Larbalestier (1988) seem confirm