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A setup for studying thermal characteristics of metals at high temperatures

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Abstract

A setup for studying the radiation characteristics of metals based on calorimetry of metals exposed to electron heating under high-vacuum conditions has been developed. A new design of the cathode-anode unit ensures a uniform distribution of the electron flow over the sample surface. The created decelerating field prevents secondary electrons from leaving the cathode-anode unit. The serviceability of the setup was tested via measurements of the integral hemispherical emissivity of extremely pure titanium (>99.91 mass %). The emissivity changes in the temperature range 1155–1165 K, associated with the restructuring of the crystal lattice from a close-packed hexagonal structure into a body-centered cubic structure, has been revealed.

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Authors and Affiliations

  1. Institute of High Energy Densities, Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 127412, Russia

    V. E. Peletskii & B. A. Shur

Authors
  1. V. E. Peletskii
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  2. B. A. Shur
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Correspondence to B. A. Shur.

Additional information

Original Russian Text © V.E. Peletskii, B.A. Shur, 2007, published in Pribory i Tekhnika Eksperimenta, 2007, No. 5, pp. 142–148.

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Peletskii, V.E., Shur, B.A. A setup for studying thermal characteristics of metals at high temperatures. Instrum Exp Tech 50, 712–718 (2007). https://doi.org/10.1134/S0020441207050120

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  • DOI: https://doi.org/10.1134/S0020441207050120

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