Mass transfer in a ErBa₂Cu₃O₇ pellet partially melted in a thermal gradient

From National Research Council Canada

Alternative title	Mass transfer in a ErBa2Cu3O7 pellet partially melted in a thermal gradient
DOI	Resolve DOI: https://doi.org/10.1016/0167-577X(92)90002-2
Author	Search for: Dubé, D.¹; Search for: Arsenault, B.¹; Search for: Gélinas, C.¹; Search for: Lambert, P.¹
Affiliation	National Research Council of Canada. NRC Industrial Materials Institute
Format	Text, Article
Abstract	Melt texturing in high thermal gradients promotes the crystallization of oriented RBa₂Cu₃Oₓ grains which improves the critical current densities. However, the presence of high thermal gradients induces a transport of material that modifies the composition of the melt and disrupts the crystallization process. In this study, material transfer phenomena have been examined by crystallizing a ErBa₂Cu₃Oₓ pellet in a static thermal field. The influence of material transfer on the microstructure of textured pellets has been studied. These microstructures indicate that the material is transferred mainly by thermocapillarity. We also determined that the temperature of the characteristic ridge formed during crystallization was about 892 ± 10°C which corresponds closely to the solidification of the binary and ternary eutectic temperatures.
Publication date	1992-10-01
Publisher	Elsevier
In	Materials Letters 15, no. 1-2: 1–7.
Language	English
Peer reviewed	Yes
NRC number	CNRC 33756 NRC-IMI92AP-23500-1317-G
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Record identifier	342301f4-c466-4643-bffc-c0b0d163d80b
Record created	2020-06-08
Record modified	2020-06-08

Date modified:: 2024-07-03