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Journal of Materials Science

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26.04.2017 | Metals

Normal spectral emissivity and heat capacity at constant pressure of Fe–Ni melts

verfasst von: Manabu Watanabe, Masayoshi Adachi, Hiroyuki Fukuyama

Erschienen in: Journal of Materials Science | Ausgabe 16/2017

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Abstract

The normal spectral emissivity at 807 nm and molar heat capacity at constant pressure of Fe–Ni melts were successfully measured by the combination of an electromagnetic levitation technique and a static magnetic field. The static magnetic field suppressed the surface oscillation and translational motion of the levitated sample droplet to reduce the experimental uncertainty in the measurements. For all compositions of the melts, the normal spectral emissivity values and molar heat capacities showed negligible temperature dependence. The excess heat capacity of the melts was evaluated as a function of composition. This analysis showed a positive deviation from the Neumann–Kopp rule over the entire composition range. Moreover, enthalpy of mixing was calculated from the excess heat capacity up to 2200 K.

Vorheriger Artikel The disparity of corrosion resistance between Ni/Au and Ni–P/Au electrical contacts in mixed flowing and salt spray tests

Nächster Artikel Microstructural investigations on historical organ pipes

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Titel: Normal spectral emissivity and heat capacity at constant pressure of Fe–Ni melts
verfasst von: Manabu Watanabe
Masayoshi Adachi
Hiroyuki Fukuyama
Publikationsdatum: 26.04.2017
Verlag: Springer US
Erschienen in: Journal of Materials Science / Ausgabe 16/2017
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-017-1122-6

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