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The discovery of the high-critical-temperature oxide superconductors has accelerated the interest for superconducting applications due to its higher-temperature operation at liquid nitrogen or above and thus reduces the refrigeration and liquid helium requirement. It also permits usage of the high-critical-temperature oxides in magnets or power applications in high-current-carrying wire or tape with acceptable mechanical capability. This Article discusses the powder techniques mainly based on the production of an oxide powder precursor, which is then subjected to various processing, including powder-in-tube processing, vapor deposition processing, and melt processing. It further discusses the microstructural, anisotropy and weak link influences on these processes.

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