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Thermodynamics of Au-Gd melts and percolation theory application for compound-forming liquid alloys

Abstract

Concentration dependence of activity a(c) in liquid Au-Gd alloys was measured at 1623 K by the Knudsen effusion method and reveals strong ordering effects. The percolation theory is proposed for analysis and calculation of activity data using concentration correlation function S{sub cc}(0) for several metallic solutions with chemical short range ordering (CSRO). The basic equations take into account the concentration difference factor c-c{sub 0} where c{sub 0} is the mean concentration at which the percolation threshold and maximum CSRO exist. The theoretical calculations of a(c) from given S{sub cc}(0) and vice versa are in satisfactory agreement with experimental data. The percolation theory was shown to be suitable for correct interpretation and prediction of activity and S{sub cc}(0) data in ordered melts. (orig.)
Authors:
Ivanov, M I; [1]  Berezutski, V V [1] 
  1. National Acad. of Sci., Kiev (Ukraine). Inst. for Problems of Mater. Sci.
Publication Date:
Feb 01, 1996
Product Type:
Journal Article
Reference Number:
SCA: 360104; PA: CHF-96:0G5906; EDB-96:059779; SN: 96001567311
Resource Relation:
Journal Name: Journal of Alloys and Compounds; Journal Volume: 234; Journal Issue: 1; Other Information: PBD: 1 Feb 1996
Subject:
36 MATERIALS SCIENCE; GOLD ALLOYS; THERMODYNAMIC ACTIVITY; GADOLINIUM ALLOYS; MELTING
OSTI ID:
206182
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Journal ID: JALCEU; ISSN 0925-8388; TRN: CH96G5906
Submitting Site:
CHF
Size:
pp. 119-124
Announcement Date:
Apr 15, 1996

Citation Formats

Ivanov, M I, and Berezutski, V V. Thermodynamics of Au-Gd melts and percolation theory application for compound-forming liquid alloys. Switzerland: N. p., 1996. Web. doi:10.1016/0925-8388(95)01936-7.
Ivanov, M I, & Berezutski, V V. Thermodynamics of Au-Gd melts and percolation theory application for compound-forming liquid alloys. Switzerland. https://doi.org/10.1016/0925-8388(95)01936-7
Ivanov, M I, and Berezutski, V V. 1996. "Thermodynamics of Au-Gd melts and percolation theory application for compound-forming liquid alloys." Switzerland. https://doi.org/10.1016/0925-8388(95)01936-7.
@misc{etde_206182,
title = {Thermodynamics of Au-Gd melts and percolation theory application for compound-forming liquid alloys}
author = {Ivanov, M I, and Berezutski, V V}
abstractNote = {Concentration dependence of activity a(c) in liquid Au-Gd alloys was measured at 1623 K by the Knudsen effusion method and reveals strong ordering effects. The percolation theory is proposed for analysis and calculation of activity data using concentration correlation function S{sub cc}(0) for several metallic solutions with chemical short range ordering (CSRO). The basic equations take into account the concentration difference factor c-c{sub 0} where c{sub 0} is the mean concentration at which the percolation threshold and maximum CSRO exist. The theoretical calculations of a(c) from given S{sub cc}(0) and vice versa are in satisfactory agreement with experimental data. The percolation theory was shown to be suitable for correct interpretation and prediction of activity and S{sub cc}(0) data in ordered melts. (orig.)}
doi = {10.1016/0925-8388(95)01936-7}
journal = []
issue = {1}
volume = {234}
journal type = {AC}
place = {Switzerland}
year = {1996}
month = {Feb}
}