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Chapter 2: High-Temperature Superconductor Electrode Surface Properties

The conductive nature of high-temperature superconductors makes it possible to use them as electrodes. Superconductor electrodes can be fabricated from either bulk ceramic pellets or thin films deposited on insulating substrates. Steps must be taken to obtain a pristine electrode surface.1, 2 Environmental conditions that avoid degradation of the electrode must then be maintained to preserve the condition of the electrode’s surface.3 The surface quality of the high-temperature superconductor electrode is critical in the formation of clean interfaces, so detailed studies into the electrochemical response of these electrodes have been performed.

In the first part of this chapter, sections 2.1 - 2.4, background material will be presented on the reactivity of high-temperature superconductors that was previously evaluated by electrochemical methods. A disscussion on the procedures for preparation of bulk pellets and thin-film superconductors is also addressed. The latter portion of the chapter, sections 2.5 - 2.10, will deal with the new research that has been completed and evaluated for the first time.

Mathematics and Natural Sciences: Biology, Chemistry, Mathematics, Physics
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Updated on: April 15, 2010 8:26 PM