Synthesis of ceramic superconductors under low oxygen pressure

U. Balachandran; R. B. Poeppel; J. E. Emerson; M. T. Lanagan; C. A. Youngdahl; S. A. Johnson

doi:10.1007/BF02747312

Synthesis of ceramic superconductors under low oxygen pressure

U. Balachandran, R. B. Poeppel, J. E. Emerson, M. T. Lanagan, C. A. Youngdahl, S. A. Johnson

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Abstract

We have developed a process for synthesizing orthorhombic YBa₂Cu₃O_x (123) superconducting powders by calcination of the precursor powder under reduced total oxygen pressure. Because a single calcination at 800°C for 4 h in flowing oxygen at a pressure of 2 mm Hg results in essentially phase-pure material, total calcination times have been drastically reduced. At liquid nitrogen temperature, sintered pellets made from this powder have critical current densities of ∼1000 A/cm² in zero applied magnetic field.

Original language	English (US)
Pages (from-to)	185-188
Number of pages	4
Journal	Bulletin of Materials Science
Volume	14
Issue number	2
DOIs	https://doi.org/10.1007/BF02747312
State	Published - Apr 1991

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials

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10.1007/BF02747312

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title = "Synthesis of ceramic superconductors under low oxygen pressure",

abstract = "We have developed a process for synthesizing orthorhombic YBa2Cu3O x (123) superconducting powders by calcination of the precursor powder under reduced total oxygen pressure. Because a single calcination at 800°C for 4 h in flowing oxygen at a pressure of 2 mm Hg results in essentially phase-pure material, total calcination times have been drastically reduced. At liquid nitrogen temperature, sintered pellets made from this powder have critical current densities of ∼1000 A/cm2 in zero applied magnetic field.",

author = "U. Balachandran and Poeppel, {R. B.} and Emerson, {J. E.} and Lanagan, {M. T.} and Youngdahl, {C. A.} and Johnson, {S. A.}",

year = "1991",

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doi = "10.1007/BF02747312",

language = "English (US)",

volume = "14",

pages = "185--188",

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T1 - Synthesis of ceramic superconductors under low oxygen pressure

AU - Balachandran, U.

AU - Poeppel, R. B.

AU - Emerson, J. E.

AU - Lanagan, M. T.

AU - Youngdahl, C. A.

AU - Johnson, S. A.

PY - 1991/4

Y1 - 1991/4

N2 - We have developed a process for synthesizing orthorhombic YBa2Cu3O x (123) superconducting powders by calcination of the precursor powder under reduced total oxygen pressure. Because a single calcination at 800°C for 4 h in flowing oxygen at a pressure of 2 mm Hg results in essentially phase-pure material, total calcination times have been drastically reduced. At liquid nitrogen temperature, sintered pellets made from this powder have critical current densities of ∼1000 A/cm2 in zero applied magnetic field.

AB - We have developed a process for synthesizing orthorhombic YBa2Cu3O x (123) superconducting powders by calcination of the precursor powder under reduced total oxygen pressure. Because a single calcination at 800°C for 4 h in flowing oxygen at a pressure of 2 mm Hg results in essentially phase-pure material, total calcination times have been drastically reduced. At liquid nitrogen temperature, sintered pellets made from this powder have critical current densities of ∼1000 A/cm2 in zero applied magnetic field.

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SP - 185

EP - 188

JO - Bulletin of Materials Science

JF - Bulletin of Materials Science

IS - 2

ER -

Synthesis of ceramic superconductors under low oxygen pressure

Abstract

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