Adaptation of the modified pulse method for determination of thermal diffusivity of solids in the vicinity of the second-order phase transition points

• Autorzy: Terpiłowski J. , Szczepaniak R. , Woroniak G. , Rudzki R.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the adaptation of the modified pulse method for investigating temperature characteristics of thermal diffusivity in the vicinity of the second-order phase transition points. The principle of the adaptation consists in the modified in relation to the original method, development of the characteristics of temperature changes between boundary surfaces of a flat-parallel specimen after the laser shot onto its front surface. The application of this adaptation was illustrated with investigation into thermal diffusivity of nickel (99.9% wt) in the temperature range of 20–380°C. In all cases the measurement error was less than 3%, and the averaging interval for the measured values of thermal diffusivity was not greater than 1.2 K.

Słowa kluczowe

EN

thermal properties; flash methods; thermal diffusivity; nickel

PL

właściwości termiczne; metoda impulsowa; dyfuzyjność cieplna; nikiel

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2013
• Tom: Vol. 34, no. 2
• Strony: 73--92
• Opis fizyczny: Bibliogr. 12 poz., il.

Twórcy

autor

Terpiłowski J.

• Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland

autor

Szczepaniak R.

• Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland

autor

Woroniak G.

• Bialystok Technical University, Wiejska 45A, 15-351 Bialystok, Poland

autor

Rudzki R.

• Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland

Bibliografia

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