Melting temperature of YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>and GdBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>at subatmospheric partial pressure

Fadila Taïr, Laura Carreras, Jaume Camps, Jordi Farjas, Pere Roura, Albert Calleja, Teresa Puig, Xavier Obradors

    Research output: Contribution to journalArticleResearchpeer-review

    7 Citations (Scopus)

    Abstract

    © 2016 The melting temperature, Tm, of YBa2Cu3O7−xand GdBa2Cu3O7−xsuperconductor ceramic compounds has been measured by differential thermal analysis (DTA) over a large oxygen partial pressure range of five orders of magnitude (2·10−5 < PO2 < 1 bar). It is shown that the DTA peak and endset temperatures are closer to Tmthan the onset temperature. Correct measurement of Tmrequires low heating rates and subatmospheric pressure conditions to avoid temperature shifts due to local oxygen overpressure and kinetic effects.
    Original languageEnglish
    Pages (from-to)787-792
    JournalJournal of Alloys and Compounds
    Volume692
    DOIs
    Publication statusPublished - 1 Jan 2017

    Keywords

    • Cuprates
    • High-Tc superconductors
    • Phase transitions
    • Thermal analysis

    Fingerprint Dive into the research topics of 'Melting temperature of YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>and GdBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>at subatmospheric partial pressure'. Together they form a unique fingerprint.

    Cite this