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

Archives of Thermodynamics

Grzegorz WoroniakBialystok Technical University, Wiejska 45A, 15-351 Bialystok, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Janusz Terpi?owskiCorresponding authorMilitary University of Technology, Kaliskiego 2, 00-908 Warsaw, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar²  Robert SzczepaniakMilitary University of Technology, Kaliskiego 2, 00-908 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar²  Rafa? RudzkiMilitary University of Technology, Kaliskiego 2, 00-908 Warsaw, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar² 

[1] Bialystok Technical University, Wiejska 45A, 15-351 Bialystok, Poland;Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland

关键词: Keywords : Thermal properties;    Flash methods;    Thermal diffusivity;    Nickel;   

DOI  :  10.2478/aoter-2013-0011

学科分类：能源（综合）

来源: Polska Akademia Nauk * Oddzial w Gdansku, Instytut Maszyn Przeplywowych / Polish Academy of Sciences, Institute of Fluid-Flow Machinery

【 摘 要 】

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.

【 授权许可】

Unknown