Neodymium Oxide Doped Melt Textured YBa₂Cu₃O_7-x Single Crystals

Fatih Dogan, Missouri University of Science and Technology
Stephen W. Sofie
Michael Strasik
Kevin E. McCrary
Arthur C. Day
William C. Hicks

This document has been relocated to http://scholarsmine.mst.edu/matsci_eng_facwork/1476

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Abstract

Processing, microstructure and property relationships in neodymium oxide doped high temperature superconducting YBa₂Cu₃O_7-x (Y123) were investigated. It has been observed that a small amount (~ 0.25 - 1 mol%) of Nd₂O₃ results in the formation of nanosized secondary phases which may have a significant effect on the superconducting properties of melt textured Y123 single crystals. It was further observed that addition of Nd₂O₃ greater than 1 mol% leads to multiple nucleation during solidification of Y123 and results in polycrystalline samples. Melt textured single crystals of Y123 with < 1 mol% were successfully grown and characterized with respect to microstructural development and superconducting properties.