Open AccessExperimental and thermodynamic description of ternary Bi-Cu-Ga system
Author(s) -
Duško Minić,
Yong Du,
Milena Premović,
Dragan Manasijević,
N. Talijan,
Dušan Milisavljević,
Aleksandar Marković,
Aleksandar Djordjević,
Milica Tomović
Publication year - 2017
Publication title -
journal of mining and metallurgy section b metallurgy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 20
eISSN - 2217-7175
pISSN - 1450-5339
DOI - 10.2298/jmmb170505017m
Subject(s) - liquidus , calphad , phase diagram , differential thermal analysis , ternary operation , thermodynamics , materials science , phase (matter) , ternary numeral system , diffraction , scanning electron microscope , analytical chemistry (journal) , chemistry , optics , physics , organic chemistry , chromatography , computer science , composite material , programming language
Phase diagram of the Bi-Cu-Ga ternary system has been investigated experimentally with 27 alloys and analytically by using a Calphad method. Thirteen annealed alloys at 200 °C were investigated by using scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), and X-ray powder diffraction (XRD) methods. Temperatures of phase transformation were determined with 14 alloys which are lying along three vertical sections Bi-Cu0.5Ga0.5, Cu-Bi0.5Ga0.5 and Ga-Bi0.5Cu0.5 by using differential thermal analysis (DTA). Based on the experimental result and by using Calphad method, ternary phase diagrams were constructed with a new description of liquidus phase. Calculated phase diagram and experimentally obtained results are in good agreement. Liquidus projection and invariant reaction were calculated by using new thermodynamic parameters for liquidus phase.
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