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A theoretical study of ordering phenomena in K-In and K-Sb molten alloys

Technical Report:

Abstract

The quasilattice approximation (QLA) has been used to study ordering phenomena in K-In and K-Sb alloys. The concentration-concentration fluctuations in the long wavelength limit S{sub cc}(0), the Watten-Cowley short range order parameter {alpha}{sub 1} and the chemical diffusion D have been computed. Our calculations yield for both alloys, qualitative agreement with experiment in the transition from a compound forming/phase separating (CF/PS) state observed in K-In to strong compound formation in the case of K-Sb. Most importantly, we obtain the calculated quantities for the whole concentration range, thus complementing the available experimental evidence. Based on the present work and our previous calculations for K-Te, we predict that from an ordering point of view and within the same framework of the QLA, K-Sn for which experimental results are not available would have a lower free energy of mixing and expectedly a stronger tendency for compound formation than that observed in K-Pb. (author). 19 refs, 7 figs, 1 tab.
Publication Date:
Aug 01, 1993
Product Type:
Technical Report
Report Number:
IC-93/269
Reference Number:
SCA: 661300; 360102; PA: AIX-25:007077; EDB-94:015593; ERA-19:007543; NTS-94:015083; SN: 94001126805
Resource Relation:
Other Information: PBD: Aug 1993
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; ANTIMONY ALLOYS; DIFFUSION; ORDER PARAMETERS; INDIUM ALLOYS; POTASSIUM ALLOYS; TIN ALLOYS; FORMATION FREE ENERGY; CRYSTAL MODELS; FLUCTUATIONS; THEORETICAL DATA; 661300; 360102; OTHER ASPECTS OF PHYSICAL SCIENCE; STRUCTURE AND PHASE STUDIES
OSTI ID:
10113170
Research Organizations:
International Centre for Theoretical Physics (ICTP), Trieste (Italy)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ON: DE94611103; TRN: XA9335346007077
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
18 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Akinlade, O, and Badirkhan, Z. A theoretical study of ordering phenomena in K-In and K-Sb molten alloys. IAEA: N. p., 1993. Web.
Akinlade, O, & Badirkhan, Z. A theoretical study of ordering phenomena in K-In and K-Sb molten alloys. IAEA.
Akinlade, O, and Badirkhan, Z. 1993. "A theoretical study of ordering phenomena in K-In and K-Sb molten alloys." IAEA.
@misc{etde_10113170,
title = {A theoretical study of ordering phenomena in K-In and K-Sb molten alloys}
author = {Akinlade, O, and Badirkhan, Z}
abstractNote = {The quasilattice approximation (QLA) has been used to study ordering phenomena in K-In and K-Sb alloys. The concentration-concentration fluctuations in the long wavelength limit S{sub cc}(0), the Watten-Cowley short range order parameter {alpha}{sub 1} and the chemical diffusion D have been computed. Our calculations yield for both alloys, qualitative agreement with experiment in the transition from a compound forming/phase separating (CF/PS) state observed in K-In to strong compound formation in the case of K-Sb. Most importantly, we obtain the calculated quantities for the whole concentration range, thus complementing the available experimental evidence. Based on the present work and our previous calculations for K-Te, we predict that from an ordering point of view and within the same framework of the QLA, K-Sn for which experimental results are not available would have a lower free energy of mixing and expectedly a stronger tendency for compound formation than that observed in K-Pb. (author). 19 refs, 7 figs, 1 tab.}
place = {IAEA}
year = {1993}
month = {Aug}
}