A cryostatic setup for the low-temperature measurement of thermal diffusivity with the photothermal method

Bertolotti Mario; Liakhou Gregory; Li Voti Roberto; Paoloni Stefano; Sibilia Concita; Sparvieri Nicola

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SM ISO690:2012

BERTOLOTTI, Mario, LIAKHOU, Gregory, LI VOTI, Roberto, PAOLONI, Stefano, SIBILIA, Concita, SPARVIERI, Nicola. A cryostatic setup for the low-temperature measurement of thermal diffusivity with the photothermal method. In: Review of Scientific Instruments, 1995, vol. 66, pp. 5598-5602. ISSN 0034-6748. DOI: https://doi.org/10.1063/1.1146026

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Review of Scientific Instruments

Volumul 66 / 1995 / ISSN 0034-6748 /ISSNe 1089-7623

A cryostatic setup for the low-temperature measurement of thermal diffusivity with the photothermal method

DOI:https://doi.org/10.1063/1.1146026

Pag. 5598-5602

Bertolotti Mario¹²³, Liakhou Gregory⁴, Li Voti Roberto¹³², Paoloni Stefano¹²³, Sibilia Concita¹²³, Sparvieri Nicola⁵

¹ Sapienza University of Rome,
² GNEQP, CNR, Italy,
³ INFM, Italy,
⁴ Technical University of Moldova,
⁵ Alenia Aeronautica, Rome

Disponibil în IBN: 19 iunie 2024

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A cryostatic setup is described to perform photothermal deflection measurements from room temperature to 77 K. The setup uses gaseous nitrogen as a medium where the photodeflection is produced. The ability of the system to work is demonstrated presenting some measurements of thermal diffusivity of high-temperature superconductor samples and of yttrium-iron garnets with variable aluminum content.

Cuvinte-cheie
aluminum, Garnets, High temperature superconductors, Low temperature engineering, Mathematical techniques, refractive index, temperature measurement, thermal conductivity, Thermal diffusion, Thermal variables measurement

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