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Thermophysical Characteristics of Single Crystals of Ba1 –x–yYbxRyF2 +x+y (R = Tm, Ho) Solid Solutions

Kuznetsov, S. V. ; Konyushkin, V. A. ; Nakladov, A. N. ; Popov, P. A. ; Pynenkov, A. A. ; Nishchev, K. N. ; Alexandrov, A. A.

Inorganic materials, 2023-11, Vol.59 (11), p.1267-1274 [Periódico revisado por pares]

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Título:
Thermophysical Characteristics of Single Crystals of Ba1 –x–yYbxRyF2 +x+y (R = Tm, Ho) Solid Solutions
Autor: Kuznetsov, S. V. ; Konyushkin, V. A. ; Nakladov, A. N. ; Popov, P. A. ; Pynenkov, A. A. ; Nishchev, K. N. ; Alexandrov, A. A.
Assuntos: Bridgman method ; Chemistry ; Chemistry and Materials Science ; Crystal growth ; Fluorination ; Heat transfer ; Holmium ; Industrial Chemistry/Chemical Engineering ; Inorganic Chemistry ; Materials Science ; Refractivity ; Room temperature ; Single crystals ; Solid solutions ; Thermal conductivity ; Thermophysical properties ; Thulium ; Ytterbium
É parte de: Inorganic materials, 2023-11, Vol.59 (11), p.1267-1274
Descrição: — Single crystals of Ba 1 – x – y Yb x R y F 2 + x + y (R = Tm, Ho) solid solutions have been grown by the Bridgman technique in vacuum using a CF 4 fluorination atmosphere. We have measured their thermal conductivity in the range 50–300 K and their refractive index from the visible to IR spectral region. As the ytterbium content increases from 2 to 14 mol %, the room-temperature thermal conductivity of the solid solutions with R = Tm and Ho decreases from 3.39 to 1.18 and from 3.11 to 1.18 W/(m K), respectively. Raising the holmium and thulium content of the solid solutions leads to a gradual increase in their refractive index, and it gradually decreases with increasing wavelength.
Editor: Moscow: Pleiades Publishing
Idioma: Inglês

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