In:
Journal of Materials Research, Springer Science and Business Media LLC, Vol. 9, No. 1 ( 1994-01), p. 1-3
Abstract:
Containerless processing of YBa 2 Cu 3 O 7−δ was performed using an aero-acoustic levitation technique. Upon solidification from the liquid, spheres of size 2.5 mm diameter undercooled and recalesced, forming tetragonal YBa 2 Cu 3 O 7−δ directly from the melt. Subsequent to solidification processing, these samples were annealed to single phase YBa 2 Cu 3 O 7−δ with orthorhombic symmetry as indicated by powder XRD, SQUID magnetometer measurements indicate a sharp superconducting transition at approximately 85 K. Magnetic J c values, calculated using the Bean critical state model, indicate that the spheres can carry critical current densities on the order of 10 4 A cm −2 . Microstructural characterization has been performed on both the as-solidified and annealed spheres.
Type of Medium:
Online Resource
ISSN:
0884-2914
,
2044-5326
DOI:
10.1557/JMR.1994.0001
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
1994
detail.hit.zdb_id:
54876-5
detail.hit.zdb_id:
2015297-8