Fabrication of a good-quality single grain YBCO sample through the control of seed crystals

Journal Article · Wed Sep 01 00:00:00 EDT 1999 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)

OSTI ID:20000842

Kim, C J; Hong, G W; Jee, Y A; Han, Y H; Han, S C; Sung, T H

The authors investigated the growth mode of YBa{sub 2}Cu{sub 3}O{sub 7{minus}y} (Y123) grains and its effect on the levitation forces and trapped magnetic field of top-seeded melt processed YBCO samples. When a slab-like Sm-seed was used, undesirable subsidiary Y123 grains were formed, while the formation of the subsidiary Y123 grains was suppressed and a nearly single Y123 grain grew when a thick and wide seed was used. The formation of the subsidiary Y123 grains decreased the levitation forces and trapped magnetic field, due to the presence of grain boundaries with weak link characteristics.

• Research Organization: Korea Atomic Energy Research Inst., Yusong, Taejon (KR)
• OSTI ID: 20000842
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers), Vol. 35, Issue 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
YTTRIUM OXIDES
BARIUM OXIDES
COPPER OXIDES
GRAIN GROWTH
LEVITATION
MAGNETIC FIELDS
GRAIN BOUNDARIES