Logo image
Back
The 1300 °C isothermal section in the Nb–Sn–C ternary phase diagram
Journal article   Peer reviewed

The 1300 °C isothermal section in the Nb–Sn–C ternary phase diagram

M.W. Barsoum, A. Ganguly, H.J. Seifert and F. Aldinger
Journal of alloys and compounds, v 337(01-Feb)
02 May 2002
DOI: https://doi.org/10.1016/S0925-8388(01)01952-1

Abstract

Metallography Phase diagrams Transition metal alloys and compounds X-ray diffraction
In this paper we map out the 1300°C isothermal section in the Nb–Sn–C ternary system. The results show that the only ternary compound in the system, Nb2SnC, is in equilibrium with Sn, NbCx, and Nb3Sn, but not with Nb, Nb2C or C. The Nb2SnC phase is not a stoichiometric compound but exists over a range of compositions that range from an Nb:Sn:C ratio of ∼54:22:24 at.%, when in equilibrium with NbC and Nb3Sn, to ∼49:28:23 at.% when in equilibrium with NbC and Sn. Assuming, the Nb and Sn sublattices to be fully occupied these chemistries translate to: Nb2.2Sn0.8C0.93 and Nb1.92Sn1.08C0.91, respectively. When in equilibrium with NbC and Nb2SnC, Nb3Sn can dissolve up to 5 at.% C. Similarly, Nb can simultaneously dissolve 2.5 at.% and 4.6 at.% of Sn and C, respectively. A correlation was also found between the lattice parameters and the Nb-concentration.

Metrics

33 Record Views
6 citations in Web of Science
6 citations in Scopus

Details

InCites Highlights

Data related to this publication, from InCites Benchmarking & Analytics tool:

Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Chemistry, Physical
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Logo image