Observation of Incongruent Melting in Cu₁₀Hf₇

Authors: Woodman, R.H.; Klotz, B.R.; Kecskes, L.J.

Source: Journal of Phase Equilibria & Diffusion, Volume 27, Number 5, October 2006 , pp. 477-481(5)

Publisher: Springer

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Abstract:

Differential thermal analysis, scanning electron microscopy, and x-ray microanalysis are used to show that the intermetallic compound Cu₁₀Hf₇, previously reported as melting congruently at 1025 °C, melts incongruently to CuHf₂ and a Hf-Cu liquid at that temperature. A eutectic point previously reported at 43.6 at.% Hf and 980 °C does not exist.

Keywords: BINARY SYSTEM; COPPER; DIFFERENTIAL THERMAL ANALYSIS; ELECTRON PROBE MICROANALYSIS; EQUILIBRIUM DIAGRAM; EXPERIMENTAL STUDY; HAFNIUM

Document Type: Regular paper

DOI: http://dx.doi.org/10.1361/154770306X132010

Publication date: 2006-10-01