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Measurement Techniques

Erschienen in:

29.03.2019 | OPTOPHYSICAL MEASUREMENTS

Realization of High-Temperature Reference Point of the Temperature Scale for the Phase Transition of a δMoC–C Metal-Carbon Compound

verfasst von: B. B. Khlevnoy, I. A. Grigor’eva, E. A. Ivashin, S. A. Ogarev, V. I. Sapritsky

Erschienen in: Measurement Techniques | Ausgabe 12/2019

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Abstract

We present the results of development of a prototype of cavity-type model of black body in the form of a graphite ampoule filled with a δMoC–C eutectic alloy of molybdenum with carbon that realizes a high-temperature reference point (HTRP) of 2856 K on the temperature scale. It is shown that the created ampoule may serve as a precision “type-A” optical radiation source. We justify the approaches to the evaluation of the uncertainty components of emissivity of the ampoule cavity equal to 0.9997 with an extended uncertainty of 0.00016 (k = 2) depending on the geometric and physical parameters with the help of numerical algorithms based on the Monte-Carlo method.

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Titel: Realization of High-Temperature Reference Point of the Temperature Scale for the Phase Transition of a δMoC–C Metal-Carbon Compound
verfasst von: B. B. Khlevnoy
I. A. Grigor’eva
E. A. Ivashin
S. A. Ogarev
V. I. Sapritsky
Publikationsdatum: 29.03.2019
Verlag: Springer US
Erschienen in: Measurement Techniques / Ausgabe 12/2019
Print ISSN: 0543-1972
Elektronische ISSN: 1573-8906
DOI: https://doi.org/10.1007/s11018-019-01564-7

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