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Brillo, Jürgen and Wessing, Johanna and Kobatake, Hidekazu and Fukuyama, Hiroyuki (2022) Molar heat capacity of liquid Ti, Al20Ti80 and Al50Ti50 measured in electromagnetic levitation. High Temperatures-High Pressures, 51 (2), pp. 145-164. Old City Publishing. doi: 10.32908/hthp.v51.1169. ISSN 0018-1544.
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Abstract
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) JK-1mol-1, 57.43(±2.9) JK-1mol-1, and 42.60(±2.2) JK-1mol-1, for Ti, Al20Ti80 and Al50Ti50, respectively. The respective temperature coefficients amount to -1.67 10-2 JK-2mol-1, -2.73 10-2 JK-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/186363/ | ||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||
| Title: | Molar heat capacity of liquid Ti, Al20Ti80 and Al50Ti50 measured in electromagnetic levitation | ||||||||||||||||||||
| Authors: |
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| Date: | 6 May 2022 | ||||||||||||||||||||
| 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: | 51 | ||||||||||||||||||||
| DOI: | 10.32908/hthp.v51.1169 | ||||||||||||||||||||
| Page Range: | pp. 145-164 | ||||||||||||||||||||
| Publisher: | Old City Publishing | ||||||||||||||||||||
| ISSN: | 0018-1544 | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | Al-Ti liquid alloys, electromagnetic levitation, molar heat capacity, 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 | ||||||||||||||||||||
| Deposited By: | Brillo, Dr.rer.nat. Jürgen | ||||||||||||||||||||
| Deposited On: | 17 May 2022 06:51 | ||||||||||||||||||||
| Last Modified: | 20 Oct 2023 07:30 |
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