High-temperature in situ observation of Nd-Sm-Ba-Cu-O system by laser-scanning microscopy

S. Banzai, N. Sakai, N. Takazawa, S. Yoshizawa, G. Osabe, M. Otsuka, M. Murakami

Research output: Contribution to journalArticle

Abstract

We have studied the quasi-binary phase diagrams of RE-Ba-Cu-O systems, in which rare earth (RE) site is composed of Nd, Sm and its mixture, along the line connecting RE123 and Ba3Cu5Oy (035) in 1% O2 and 21% O2 in Ar. The nucleation and melting of REBa2Cu3Oy and RE2BaCuO5/RE4Ba2Cu2 O10 were observed in situ and the liquidus lines were determined using a laser-scanning microscope. Phase identification was performed on the samples quenched from high temperatures through X-ray powder diffraction measurements and electron probe microanalysis.

Original languageEnglish
Pages (from-to)702-705
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume357-360
DOIs
Publication statusPublished - 2001 Aug

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Keywords

  • In situ observation
  • Mixing RE elements
  • Neodymium
  • Phase diagram
  • Samarium

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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