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On the influence of the furnace and cell conditions on the phase transition of the eutectic Co-C.

Bloembergen, P*; Battuello, M*; Girard, F*; Machin, G; Wright, L (2015) On the influence of the furnace and cell conditions on the phase transition of the eutectic Co-C. Int. J. Thermophysics, 36 (8). pp. 1859-1887.

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Abstract

This paper considers the influence, in terms of temperature and time, of the following three factors on the phase transition of high temperature fixed points: the temperature gradient of the furnace along the fixed-point cell, the thermal inertia of the furnace, and the thermal condition of the cell itself. Melting and freezing experiments have been performed for the eutectic Co-C in a three-zone furnace, of which the temperature gradient along the cell could be varied from positive to negative. To help the interpretation of these experiments a realistic 2D finite-element model has been implemented, simulating the three influence factors. The model allowed us to understand the features observed in the melts and associated freezes, for the different furnace conditions, not only qualitatively but also quantitatively. This research identifies the essential requirements to facilitate optimum configuration of furnace and cell design.

Item Type: Article
Keywords: Contact resistance, Eutectics, Finite-element, Fixed points, Freezing, Furnace, High temperatures, Melting, Temperature gradient, Thermal inertia
Subjects: Engineering Measurements
Engineering Measurements > Thermal
Identification number/DOI: 10.1007/s10765-015-1892-5
Last Modified: 02 Feb 2018 13:13
URI: http://eprintspublications.npl.co.uk/id/eprint/6823

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