Study of the Glass Formation of High Temperature Superconductors
Study of the Glass Formation of High Temperature Superconductors

Author: National Aeronautics and Space Adm Nasa

Publisher: Independently Published

Published: 2018-10-18

Total Pages: 32

ISBN-13: 9781728884400

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A number of compositions of ceramic oxide high T(sub c) superconductors were elevated for their glass formation ability by means of rapid thermal analysis during quenching, optical, and electron microscopy of the quenched samples, and with subsequent DSC measurements. Correlations between experimental measurements and the methodical composition changes identified the formulations of superconductors that can easily form glass. The superconducting material was first formed as a glass; then, with subsequent devitrification, it was formed into a bulk crystalline superconductor by a series of processing methods. Ethridge, Edwin C. and Kaukler, William F. and Rolin, Terry Marshall Space Flight Center PROJ. 89-04

Bismuth-Based High-Temperature Superconductors
Bismuth-Based High-Temperature Superconductors

Author: Hiroshi Maeda

Publisher: CRC Press

Published: 1996-07-09

Total Pages: 652

ISBN-13: 9780824796907

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Provides coverage of the ongoing investigations on bismuth-based high-temperature cuprate superconductors, integrating scattered research activities and literature from 70 leading scientists throughout the world. The text covers crystal structures and microstructures, reversible or equilibrium magnetic and thermal properties, atomic site tunnel spectroscopy, experimental studies concerning equilibrium phases, and more.

Studies of High Temperature Superconductors
Studies of High Temperature Superconductors

Author: A. V. Narlikar

Publisher:

Published: 1991

Total Pages: 424

ISBN-13:

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The series covers leading areas of scientific and technological research of high Tc materials. Each of the 11 chapters in the seventh volume is a detailed review or an extended paper focusing on research and applications. Annotation copyright Book News, Inc. Portland, Or.

Physics and Materials Science of High Temperature Superconductors, IV
Physics and Materials Science of High Temperature Superconductors, IV

Author: R. Kossowsky

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 351

ISBN-13: 9401157324

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Five questions dominated the ARW on Physics and Materials Science of High Temperature Superconductors, of which this book forms the permanent record. Briefly, these are: (i) How close are we to a unified theory? The consensus is that we are not. (ii) Flux pinning: can it be achieved in bulk materials? Still an open question. The following three questions are related. (iii) Can grain boundary contributions be brought under control? (iv) What is the real requirement for purity and general chemistry control? (v)What is the practical outlook for bulk products - tapes and wires? One of the conclusions is that the geometry and dimensions in thin films are the key parameters that facilitate the realization of high current densities and, consequently, their commercial application. On the other hand, the very large number of poorly understood microstructural, chemical and mechanical variables involved in the preparation of bulk materials are currently prohibiting large scale commercialization of wires and tapes.