Entrapment of elongated and crystallographically aligned pores in YBa2Cu3O7-y melt-textured with BaCeO3 addition

Compared to entrapped spherical pores in YBa2Cu3O7-y (123) crystals melt-textured without additives, the pores entrapped within 123 crystals melt-textured with 5 wt% BaCeO3 are elongated and aligned parallel to (100), (010), and (001) growth planes of the 123 crystals. The front side of the pores that meets first the growth front of the 123 crystal is faceted but the backside is wavy. Many BaCeO3 particles are segregated at the wavy surface. The crystallographic alignment of the elongated pores and the segregation of BaCeO3 particles are discussed in terms of the contact angle of the pores on the growth front and interfacial energy relationships between the related phases.
Publisher
MATERIALS RESEARCH SOCIETY
Issue Date
1999-05
Language
ENG
Keywords

Y2BACUO5; SEGREGATION; PARTICLES; CRYSTALS; PATTERN; AL2O3

Citation

JOURNAL OF MATERIALS RESEARCH, v.14, no.5, pp.1707 - 1710

ISSN
0884-2914
URI
http://hdl.handle.net/10203/1643
Appears in Collection
MS-Journal Papers(저널논문)
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