Analysis on the ceasing mechanism of the YBCO crystal growth during melting growth process by unidirectional solidification

Haitao Cao, Rui Hu, Hongchao Kou, Jinshan Li, Enzhi Gao, Hengzhi Fu, Lian Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The unidirectional solidification technology by a zone melting method was performed to obtain the large single domain YBCO. The interface morphology and chemical composition at the growth front of the YBCO crystal were investigated in order to make clear the growth characteristic of the YBCO crystal during melting growth by unidirectional solidification. It was found that YBCO crystal would cease growing when yttrium was depleted in the liquid phase at the YBCO crystal growth front. For maintaining the continuous growth of YBCO crystal, compositions of Y, Ba and Cu in raw samples have to be adjusted so as to make yttrium rich in the liquid phase at the YBCO crystal growth front during the melting growth process. It is very useful for the study on the mechanism of the YBCO crystal growth.

Original languageEnglish
Title of host publicationProgress in Light Metals, Aerospace Materials and Superconductors
PublisherTrans Tech Publications Ltd
Pages2091-2096
Number of pages6
EditionPART 4
ISBN (Print)0878494324, 9780878494323
DOIs
StatePublished - 2007
Event2006 Beijing International Materials Week, 2006 BIMW - International Conference on Superconducting Materials, ICSM 2006 - Beijing, China
Duration: 25 Jun 200630 Jun 2006

Publication series

NameMaterials Science Forum
NumberPART 4
Volume546-549
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference2006 Beijing International Materials Week, 2006 BIMW - International Conference on Superconducting Materials, ICSM 2006
Country/TerritoryChina
CityBeijing
Period25/06/0630/06/06

Keywords

  • Ceasing mechanism
  • Single domain
  • Unidirectional solidification
  • YBCO

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