A modified flash method for determination of thermal diffusivity in semitransparent solids exposed to laser radiation

• Autorzy: Terpiłowski J.
• Języki publikacji: EN

Abstrakty

EN

A method of the thermal diffusivity measurement of the semitransparent materials for the laser pulse radiation is described. The paper also presents a laser flash laboratory apparatus used for the thermal diffusivity investigations. A pulse neodymium laser is utilised as a heat source. The method is based on the measurements of the temperature difference between two surfaces of a disc-like sample during the process of achieving the temperature equilibrium. The materials under testing were methyl polymethacrylate (PMM) and polytetrafluoroethylene (PTFE). Investigations were carried out within a temperature range of 300-360 K.

Słowa kluczowe

EN

flash method; pulse method; thermal diffusivity; thermophysical properties

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2004
• Tom: Vol. 25, no. 2
• Strony: 39--68
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Terpiłowski J.

• Wojskowa Akademia Techniczna, Warszawa,

Bibliografia

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• [13] TERPIŁOWSKI J.: A pulse method for determining the thermal diffusivity of solids by measuring the temperature difference between the extreme surfaces of the sample, Journal of Technical Physics, 25(1984), No. 3-4, 429-439.
• [14] TERPIŁOWSKI J.: Thermal diffusivity investgations based on measurements of the temperature difference between side surfaces of a specimen, Proc. of the 8th Int. Symp. on Temperature and Thermal Measurements in Industry and Science TEMP MEKO 2001, VDE Verlag GMBH, Berlin 2002, 11871192.
• [15] TERPIŁOWSKI J.: A modified flash method for determination of thermal diffusivity in solids, Arch. of Thermodynamics, 24(2003), No. 1, 59-80.
• [16] TERPIŁOWSKI J.: A pulse method of the thermal diffusivity determination applied for a semitransparent for a laser radiation materials, Proc. of the 16th European Conf. on Thermophys.l Propert., Imperial Coll., London 2002 (CD disc, 24 p.).