Reactive Nanophase Oxide Additions to Melt-Processed High-Tc Superconductors

K. C. Goretta; B. P. Brandel; M. T. Lanagan; J. G. Hu; D. J. Miller; S. Sengupta; M. N. Ali; J. C. Parker; Nan Chen

doi:10.1109/77.402803

Reactive Nanophase Oxide Additions to Melt-Processed High-Tc Superconductors

K. C. Goretta, B. P. Brandel, M. T. Lanagan, J. G. Hu, D. J. Miller, S. Sengupta, M. N. Ali, J. C. Parker, Nan Chen

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Nanophase TiO2 and A1203 powders were synthesized by a vapor-phase process and mechanically mixed with stoichiometric YBa2Cu3Ox and TlBa2C a 2C u 3 O x powders in 20 mole% concentrations. Pellets produced from powders with and without nanophase oxides were heated in air or O2 above the peritectic melt temperature and then slowly cooled. At 4.2 K, the intragranular critical current density (Jc) increased dramatically with the oxide additions. At 35-50 K, effects of the oxide additions were positive, but less pronounced. At 77 K, the additions decreased Jc, probably because they depressed the transition temperature.

Original language	English (US)
Pages (from-to)	1309-1312
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	5
Issue number	2
DOIs	https://doi.org/10.1109/77.402803
State	Published - Jun 1995

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/77.402803

Cite this

@article{4196cd897f564c0581bbe41404949c72,

title = "Reactive Nanophase Oxide Additions to Melt-Processed High-Tc Superconductors",

abstract = "Nanophase TiO2 and A1203 powders were synthesized by a vapor-phase process and mechanically mixed with stoichiometric YBa2Cu3Ox and TlBa2C a 2C u 3 O x powders in 20 mole% concentrations. Pellets produced from powders with and without nanophase oxides were heated in air or O2 above the peritectic melt temperature and then slowly cooled. At 4.2 K, the intragranular critical current density (Jc) increased dramatically with the oxide additions. At 35-50 K, effects of the oxide additions were positive, but less pronounced. At 77 K, the additions decreased Jc, probably because they depressed the transition temperature.",

author = "Goretta, {K. C.} and Brandel, {B. P.} and Lanagan, {M. T.} and Hu, {J. G.} and Miller, {D. J.} and S. Sengupta and Ali, {M. N.} and Parker, {J. C.} and Nan Chen",

note = "Funding Information: This work was supported by the US. Department of Energy (DOE), Offices of Energy Efficiency and Renewable Energy, as part of a DOE program to develop electric power technology, and Basic Energy Sciences (Materials Sciences), under Contract W-31-109-Eng-38. B.P.B.* was supported by the Argonne Division of Educational Programs with funding from DOE.",

year = "1995",

month = jun,

doi = "10.1109/77.402803",

language = "English (US)",

volume = "5",

pages = "1309--1312",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "2",

}

TY - JOUR

T1 - Reactive Nanophase Oxide Additions to Melt-Processed High-Tc Superconductors

AU - Goretta, K. C.

AU - Brandel, B. P.

AU - Lanagan, M. T.

AU - Hu, J. G.

AU - Miller, D. J.

AU - Sengupta, S.

AU - Ali, M. N.

AU - Parker, J. C.

AU - Chen, Nan

N1 - Funding Information: This work was supported by the US. Department of Energy (DOE), Offices of Energy Efficiency and Renewable Energy, as part of a DOE program to develop electric power technology, and Basic Energy Sciences (Materials Sciences), under Contract W-31-109-Eng-38. B.P.B.* was supported by the Argonne Division of Educational Programs with funding from DOE.

PY - 1995/6

Y1 - 1995/6

N2 - Nanophase TiO2 and A1203 powders were synthesized by a vapor-phase process and mechanically mixed with stoichiometric YBa2Cu3Ox and TlBa2C a 2C u 3 O x powders in 20 mole% concentrations. Pellets produced from powders with and without nanophase oxides were heated in air or O2 above the peritectic melt temperature and then slowly cooled. At 4.2 K, the intragranular critical current density (Jc) increased dramatically with the oxide additions. At 35-50 K, effects of the oxide additions were positive, but less pronounced. At 77 K, the additions decreased Jc, probably because they depressed the transition temperature.

AB - Nanophase TiO2 and A1203 powders were synthesized by a vapor-phase process and mechanically mixed with stoichiometric YBa2Cu3Ox and TlBa2C a 2C u 3 O x powders in 20 mole% concentrations. Pellets produced from powders with and without nanophase oxides were heated in air or O2 above the peritectic melt temperature and then slowly cooled. At 4.2 K, the intragranular critical current density (Jc) increased dramatically with the oxide additions. At 35-50 K, effects of the oxide additions were positive, but less pronounced. At 77 K, the additions decreased Jc, probably because they depressed the transition temperature.

UR - http://www.scopus.com/inward/record.url?scp=0029322037&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029322037&partnerID=8YFLogxK

U2 - 10.1109/77.402803

DO - 10.1109/77.402803

M3 - Article

AN - SCOPUS:0029322037

SN - 1051-8223

VL - 5

SP - 1309

EP - 1312

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2

ER -

Reactive Nanophase Oxide Additions to Melt-Processed High-Tc Superconductors

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this