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Molar heat capacity of liquid Ti, Ti80Al20 and Ti50Al50 measured in electromagnetic levitation

Brillo, Jürgen and Wessing, Johanna and Kobatake, Hidekazu and Fukuyama, Hiroyuki (2022) Molar heat capacity of liquid Ti, Ti80Al20 and Ti50Al50 measured in electromagnetic levitation. Thermodynamics of alloys TOFA (2022), 2022-09-12 - 2022-09-16, Krakau.

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Temperature dependent isobaric molar heat capacity cP was measured in a containerless way for liquid Ti and two AlTi binary liquid alloys. The technique of electromagnetic levitation was used in combination with laser modulation calorimetry. In all cases, linear temperature dependencies were found: At the corresponding liquidus temperatures, cP equals 49.75(±2.0) J∙K-1mol-1, 57.43(±2.9) J∙K-1mol-1, and 42.60(±2.2)J∙K-1mol-1, for Ti, Al20Ti80 and Al50Ti50, respectively. The respective temperature coefficients amount to -1.67∙10-2J∙K-2mol-1, -2.73∙10-2J∙K-2mol-1, and +7.83∙10-2J∙K-2mol-1. For liquid Ti, there is a good agreement with existing literature data. The results are discussed in relation to the Neumann-Kopp rule

Item URL in elib:https://elib.dlr.de/192489/
Document Type:Conference or Workshop Item (Speech)
Title:Molar heat capacity of liquid Ti, Ti80Al20 and Ti50Al50 measured in electromagnetic levitation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Fukuyama, HiroyukiTohoku University, SendaiUNSPECIFIEDUNSPECIFIED
Date:15 September 2022
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:TiAl alloys; liquid alloys; thermophysical properties, specific heat capacity; electromagnetic levitation
Event Title:Thermodynamics of alloys TOFA (2022)
Event Location:Krakau
Event Type:international Conference
Event Start Date:12 September 2022
Event End Date:16 September 2022
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-Steady
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Brillo, Dr.rer.nat. Jürgen
Deposited On:19 Dec 2022 07:37
Last Modified:24 Apr 2024 20:53

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