VAPOR-PHASE GROWTH-MECHANISM OF THE BI-BASED-2212 SUPERCONDUCTING WHISKERS

Authors
Citation
H. Jin et Qm. Liu, VAPOR-PHASE GROWTH-MECHANISM OF THE BI-BASED-2212 SUPERCONDUCTING WHISKERS, Journal of crystal growth, 181(4), 1997, pp. 446-451
Citations number
16
Categorie Soggetti
Crystallography
Journal title
ISSN journal
00220248
Volume
181
Issue
4
Year of publication
1997
Pages
446 - 451
Database
ISI
SICI code
0022-0248(1997)181:4<446:VGOTBS>2.0.ZU;2-C
Abstract
Bi2Sr2CaCu2O8 (2212) superconducting whiskers can be grown out from an annealed melt-quenched precursor plate in an atmosphere of flowing ox ygen. It was found that other than the appropriate annealing temperatu re and time, glass precursor, flowing oxygen atmosphere and temperatur e gradient in the furnace are vital factors. The relaxation of interna l strain in the melt-quenched precursor provides the driving force for the whisker growth. Flowing oxygen atmosphere and temperature gradien t both play the role of mass transport and accelerate the whisker grow th rate.