A modified flash method for determination of thermal diffusivity in solids

• Autorzy: Terpiłowski J.
• Języki publikacji: EN

Abstrakty

EN

A modified version of the flash method of the thermal diffusivity measurement of solids is described. The method is based on the analysis of the temperature difference between two opposite surfaces of a disc-like sample, where one surface had surface heat generation. The paper also presents a laser flash laboratory apparatus, a procedure for the samples preparation under investigation, as well as the required conditions for the experiment. The method and the apparatus were tested by measurement the thermal diffusivity of nickel 0.999 for several temperatures within the range from 300 to 1000 K. For illustration, the investigation of thermal diffusivity characteristic, within the range from 300 to 1000 K, of the N18K9M5TPr alloy steel, is also presented. The error of the thermal diffusivity determination was estimated to be less than 6%.

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: 2003
• Tom: Vol. 24, no 1
• Strony: 59--80
• Opis fizyczny: Bibliogr. 8 poz.,Rys., tabl.,

Twórcy

autor

Terpiłowski J.

• Wojskowa Akademia Techniczna, Warszawa

Bibliografia

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• [2] CARSLAW H. S., JAEGER I. C. Conduction Heat Transfer, Oxford University Press, Oxford 1959, 102.
• [3] PARKER W. J., JENKINS R. J., BUTLER C. P., ABBOT G.L.: Flash method of de- termining thermal diffusivity heat capacity and thermal conductivity, J. Appl. Phys., Vol. 32 (1679), 1961.
• [4] RIGHINI F., CEZAIRYLIYAN A.: Pulse method of thermal diffusivity measurement (A review), High Temp. - High Pres. 5(1973), 481-501.
• [5] Compendium of Thermophysical Property Measurements Method, Plenum Press, New York 1984.
• [6] Lykov A. V: Theory of Heat Conduction, Vysshaya Shkola, Moscov 1967, (in Russian).
• [7] SMIRNOW N. W., DUNIN-BARKOWSKI I.W.: A short course on statistical mathematics for technical applications, PWN, Warszawa 1966, (in Polish).
• [8] Properties of selected ferrous alloying elements, Ed. by Y. S. Touloukian and C.Y. Ho. McGraw-Hill/CINDAS Data Series on Material Properties, Volume III- 1, McGraw-Hill Book Company, New York 1981.