Thermal Conductivity of Single Crystals of CaF2–BaF2 Solid Solutions

— Single crystals of Ca 1 – х Ba х F 2 ( x = 0.001–0.05 and 0.85–0.99) solid solutions have been grown by the Bridgman method, and their thermal conductivity has been measured in the range 50–300 K by an absolute steady-state axial heat flow technique. The thermal conductivity of all samples has bee...

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Veröffentlicht in:Inorganic materials 2022-04, Vol.58 (4), p.396-402
Hauptverfasser: Popov, P. A., Krugovykh, A. A., Zentsova, A. A., Konyushkin, V. A., Nakladov, A. N., Kuznetsov, S. V., Fedorov, P. P.
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Sprache:eng
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Zusammenfassung:— Single crystals of Ca 1 – х Ba х F 2 ( x = 0.001–0.05 and 0.85–0.99) solid solutions have been grown by the Bridgman method, and their thermal conductivity has been measured in the range 50–300 K by an absolute steady-state axial heat flow technique. The thermal conductivity of all samples has been shown to decrease with increasing temperature. At 300 K, the lowest thermal conductivity of the samples with x ≤ 0.05 exceeds 6 W/(m K), and that of the samples with x ≥ 0.85 is a factor of 2 lower.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168522040136