http://hdl.handle.net/20.500.12128/8333
Tytuł: | Thermal Wave Measurements with a Mirage Detection for Investigation of Thermal Diffusivity of GdCa4O(BO3)3 Single Crystals |
Autor: | Bodzenta, J. Kaźmierczak-Bałata, A. Łukasiewicz, T. Hofman, B. Kucytowski, Jacek |
Słowa kluczowe: | materiały laserowe; właściwości termiczne krystalicznych ciał stałych; kryształy |
Data wydania: | 2008 |
Źródło: | Acta Physica Polonica A, Vol. 114, nr 6A (2008), s. 27-32 |
Abstrakt: | Single crystals of GdCa4O(BO3)3 were examined to determine their thermal properties. Samples were grown by the Czochralski pulling technique. There were three types of samples: a pure crystal, the crystal doped with neodymium (4 at.% of Nd), and the third one doped with ytterbium (7 at.% of Yb). All samples were rectangular prisms with edges parallel to the axes of the optical indicatrix X, Y , Z (principal axes). The thermal diffusivity was determined by means of the thermal wave method with the optical detection of the temperature disturbance based on a mirage effect. Experimental results showed anisotropy of the thermal diffusivity. The thermal diffusivity along Y direction has the highest value while values obtained in X and Z axes are much lower. Dopants cause decrease in the thermal diffusivity for all investigated directions. |
URI: | http://hdl.handle.net/20.500.12128/8333 |
ISSN: | 0587-4246 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
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Bodzenta_Thermal_wave_measurements_with_a_mirage.pdf | 379,49 kB | Adobe PDF | Przejrzyj / Otwórz |
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