elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Excess volume and heat of mixing in Cu-Ti liquid mixture

Amore, S. and Delsante, S and Kobatake, H. and Brillo, J. (2013) Excess volume and heat of mixing in Cu-Ti liquid mixture. Journal of Chemical Physics, 139, 064504-1. American Institute of Physics (AIP). ISSN 0021-9606

Full text not available from this repository.

Abstract

The macroscopic quantity describing the chemical ordering in dense liquid binary mixture is the excess volume. However the connection between excess volume, packing and mixing behavior in metallic melts is not yet fully understood. A precise measurement of the density of metallic melts allows a deep insight into the mixing mechanisms and chemical ordering of such systems. The density of the Cu-Ti binary mixture have been measured over the whole composition range by the containerless technique of electromagnetic levitation (EML) as function of the temperature. A linear temperature dependence of the density has been found for all alloys investigated. Therefore the density decreases with the increasing of the Ti content in the alloys showing a negative deviation from the regular solution model. Nevertheless a positive excess volume arises for the deviation of the density from the regular solution.The excess volume behavior has been discussed taking into account the negative enthalpy of mixing the Cu-Ti system and explained in terms of chemical ordering and in particular by a subtle interplay between short range and long range interactions.

Item URL in elib:https://elib.dlr.de/85672/
Document Type:Article
Title:Excess volume and heat of mixing in Cu-Ti liquid mixture
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Amore, S.CNR-IENIUNSPECIFIED
Delsante, SCNR-IENIUNSPECIFIED
Kobatake, H.CNR-IENIUNSPECIFIED
Brillo, J.MP-KPUNSPECIFIED
Date:2013
Journal or Publication Title:Journal of Chemical Physics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:139
Page Range:064504-1
Publisher:American Institute of Physics (AIP)
ISSN:0021-9606
Status:Published
Keywords:Cu-Ti density electromagnetic levitation excess volume heat of mixing liquid alloy molar volume
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Materialforschung unter Mikro-g (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Scientific Experiments MP
Deposited By: Brillo, Dr.rer.nat. Jürgen
Deposited On:26 Nov 2013 09:07
Last Modified:08 Mar 2018 18:42

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.