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Article
The Pr-Rich Portion of the Ni-Pr System
Journal of Phase Equilibria and Diffusion
  • M. Hunag, Iowa State University
  • D. Wu, Iowa State University
  • K. W. Dennis, Iowa State University
  • James W. Anderegg, Iowa State University
  • R. William McCallum, Iowa State University
  • Thomas A. Lograsso, Iowa State University
Document Type
Article
Publication Date
8-1-2005
DOI
10.1007/s11669-005-0107-3
Abstract

The Ni-Pr phase diagram on the Pr-rich side was revised using differential thermal analysis, differential scanning calorimetry, and scanning electron microscopy. The existence of four stoichiometric compounds, Ni2Pr, NiPr, Ni3Pr7, and NiPr3, was confirmed; however, the melting temperatures of 766 °C (NiPr), 566 °C (Ni3Pr7), and 562 °C (NiPr3) are considerably different from the previously reported values. The same was true for the four eutectic reactions, which were determined to be as follows: liquid (L) (45±1 at.% Pr) ↔ Ni2Pr+NiPr at a mean temperature of 732±5 °C; L (65±1 at.% Pr) ↔ NiPr+Ni3Pr7 at a mean temperature of 550±2 °C; L (72±2 at.% Pr) ↔ Ni3Pr7+NiPr3 at a mean temperature of 557±2 °C; and L (77±1 at.% Pr) ↔ NiPr3+Pr.

Comments

This article is from Journal of Phase Equilibria and Diffusion 26 (2005): pp. 209—214, doi:10.1007/s11669-005-0107-3

Copyright Owner
Journal of Phase Equilibria and Diffusion
Language
en
Date Available
2013-10-01
File Format
application/pdf
Citation Information
M. Hunag, D. Wu, K. W. Dennis, James W. Anderegg, et al.. "The Pr-Rich Portion of the Ni-Pr System" Journal of Phase Equilibria and Diffusion Vol. 26 Iss. 3 (2005) p. 209 - 214
Available at: http://works.bepress.com/thomas_lograsso/194/