Plasma Sprayed High-Tc Layers for Magnetic Shielding
Plasma spraying is a well-known technique for the deposition of thick layers of ceramics and metals. Because of the large deposition rate large areas can be coated. Since the discovery of High-T, superconductors1,2 plasma spraying has also been applied to the fabrication of coatings of these materials.3–10 Large area coatings can be useful in magnetic shielding applications. The technical implementation of the plasma spray process and the subsequent thermal treatment for the production of High-Tc layers is relatively straightforward. However, the deposition process, the phase relations of the superconductors and the interactions with the substrate material make the whole process very complicated.
KeywordsBuffer Layer Critical Current Density Atmospheric Plasma Spraying Field Profile Scan Electron Microscope Cross Section
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