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Normal spectral emissivity of liquid Al-Ti binary alloys

Brillo, Jürgen and Wessing, Johanna and Kobatake, Hidekazu and Fukuyama, Hiroyuki (2019) Normal spectral emissivity of liquid Al-Ti binary alloys. High Temperatures-High Pressures, 48, pp. 423-438. Old City Publishing. doi: 10.32908/hthp.v48.783. ISSN 0018-1544.

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Abstract

The normal spectral emissivity of four compositions in the Al-Ti binary liquid system was measured in dependence of the wavelength and temperature. It was found that all compositions show negligible temperature dependence. At a wavelength of 940 nm, the emissivity amounts to 0.37, 0.40, 0.32, and 0.31 for Ti, Al20Ti80,Al50Ti50, and Al70Ti30, respectively. The dependence of the emissivity on composition is in good agreement with literature data of binary and multi-component Al-Ti-based alloys. Using the classical Drude model, electrical resistivities are predicted for the Al-Ti system from the measured emissivities. Comparison with existing data from literature for Al show reasonable agreement.

Item URL in elib:https://elib.dlr.de/129789/
Document Type:Article
Title:Normal spectral emissivity of liquid Al-Ti binary alloys
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Brillo, JürgenJuergen.Brillo (at) dlr.deUNSPECIFIED
Wessing, JohannaJohanna.Wessing (at) dlr.deUNSPECIFIED
Kobatake, HidekazuHidekazu.Kobatake (at) dlr.deUNSPECIFIED
Fukuyama, Hiroyukihiroyuki.fukuyama.b6 (at) tohoku.ac.jpUNSPECIFIED
Date:2019
Journal or Publication Title:High Temperatures-High Pressures
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:48
DOI :10.32908/hthp.v48.783
Page Range:pp. 423-438
Publisher:Old City Publishing
ISSN:0018-1544
Status:Published
Keywords:Al-Ti liquid binary alloys electromagnetic levitation electrical resistivity normal spectral emissivity thermophysical properties
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 - Research under Space Conditions
DLR - Research theme (Project):R - Project EML
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Scientific Experiments MP
Deposited By: Brillo, Dr.rer.nat. Jürgen
Deposited On:23 Oct 2019 10:19
Last Modified:23 Oct 2019 10:19

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