Experimental and thermodynamic assessment of the Nd-Zr system

N. Mattern, Yoshihiko Yokoyama, A. Mizuno, J. H. Han, O. Fabrichnaya, T. Harada, S. Kohara, J. Eckert

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The phase equilibria of the binary Nd-Zr system have been investigated by combining the gas levitation technique with in situ high energy synchrotron X-ray diffraction at elevated temperatures. The Nd-Zr system is of a eutectic type. From the diffraction data the liquidus line was experimentally determined between 1300 and 1800 K. At T=1274±10 K the eutectic reaction L↔ bcc-Nd+bcc-Zr is evident. The eutectic composition x=7±2 at% Zr is determined from the analysis of the microstructure of cast alloys in accordance with the in situ diffraction data. Based on the experimental data the Nd-Zr phase diagram is presented and a self-consistent thermodynamic description is given.

Original languageEnglish
Pages (from-to)103-107
Number of pages5
JournalCalphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume46
DOIs
Publication statusPublished - 2014 Sep 1

Keywords

  • CALPHAD
  • Conical nozzle levitation
  • In situ X-ray diffraction
  • Nd-Zr phase diagram
  • Thermodynamic assessment

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Computer Science Applications

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