It is well established that the extended range V(I) transition behavior in
filamentary superconducting composites depends strongly on the processing
conditions of the composite. Based on previous work, a model proposed by
Warnes et al predicts that the second derivative of the V(I) transition is related to
a more fundamental property the critical current distribution in the composite.
The present work consolidates the said model by showing that in spite of
the V(I) transition being dependent on the matrix resistance, the second
derivative is relatively independent. Also, the second derivative V(I) curve has
been correlated to the critical current distributions and area distributions in
monofilament and multifilamentary superconductors, using image analysis
techniques. The work provides a better understanding of the critical current
distributions in composite superconductors and can be an effective tool for
measuring conductor quality more precisely.
In addition to this, image analysis techniques have been used to study the
effect of processing on the structure of wires - and have been related to the
predictions of a model of inplane stresses in composites. / Graduation date: 1996
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/34634 |
| Date | 16 January 1996 |
| Creators | Narang, Girish |
| Contributors | Warnes, William H. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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