Texturing Crystal Growth in Vertical Thermal Gradients

Abstract

Texture growth in incongruently melting ceramic superconductor materials, such as YBa2Cu3O7-χ can be combined with zone refinement in thermal gradients to increase critical current densities. In gravity aided texture growth (GATEG), a vertical thermal gradient is used with downward motion of the partially molten specimen (relative to the furnace) so that the molten phase recrystallizes with grain growth. The oxidation features of Y-Ba-Cu-0 and Bi-Sr-Ca-Cu-0 can be explained by Madelung potentials.

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Correspondence to N. X. Tan.

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Tan, N.X., Bourdillon, A.J. & Sawides, N. Texturing Crystal Growth in Vertical Thermal Gradients. MRS Online Proceedings Library 169, 283–286 (1989). https://doi.org/10.1557/PROC-169-283

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