Magnetization of a YBa2Cu3O7 crystal prepared by the quench and melt growth process

Masato Murakami, Mitsuru Morita, Noboru Koyama

Research output: Contribution to journalArticle

167 Citations (Scopus)

Abstract

Magnetization measurements have been conducted on YBa2Cu3O7 samples fabricated by the quench and melt growth(QMG) technique using a vibrating sample magnetometer at 77 K. It has been found that the magnetization behavior of QMG-processed YBa2Cu3O7 can be understood in terms of Bean critical state model. High purity powders of Y2O3, BaCO3, and CuO were mixed in an appropriate proportion and calcined at 900°C for 24 h. They were rapidly heated to 1400°C and held for 3 min in a platinum crucible and quenched using copper hammers. The quenched plate was again heated to 1100°C for 1 h, cooled down to 1000°C at the rate of 100°C/h, and slow cooled with a thermal gradient of 10°C/cm in flowing oxygen.

Original languageEnglish
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume28
Issue number7
Publication statusPublished - 1989 Jul
Externally publishedYes

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Magnetization
hammers
magnetization
Crystals
Hammers
Crucibles
Magnetometers
crucibles
Thermal gradients
magnetometers
crystals
Platinum
proportion
purity
platinum
Copper
Powders
copper
gradients
Oxygen

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Magnetization of a YBa2Cu3O7 crystal prepared by the quench and melt growth process. / Murakami, Masato; Morita, Mitsuru; Koyama, Noboru.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 28, No. 7, 07.1989.

Research output: Contribution to journalArticle

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