Title :
The determination of Curie temperature by differential scanning calorimetry under magnetic field
Author :
Leu, M.S. ; Tsai, C.S. ; Lin, C.S. ; Lin, S.T.
Author_Institution :
Mater. Res. Lab., Ind. Technol. Res. Inst., Hsinchu, Taiwan
fDate :
11/1/1991 12:00:00 AM
Abstract :
Differential scanning calorimetry (DSC) has been shown to be a convenient and accurate method for measuring Curie temperature (T c) in terms of the observation that the heat flow has a visible variation at the transition point. An improved method is presented which involves the application of an axial magnetic field on samples during the DSC scanning process. The heat flow change of the samples at the Curie transition is amplified and a sharp Tc is easily observed. The improved DSC results show that the DC field is more effective in amplifying the transition phenomenon than the AC field
Keywords :
Curie temperature; calorimetry; magnetic variables measurement; temperature measurement; thermal analysis; Curie temperature; axial magnetic field; differential scanning calorimetry; heat flow; temperature measurement; AC generators; Amorphous magnetic materials; Amorphous materials; Calorimetry; DC generators; Magnetic field measurement; Magnetic fields; Magnetic materials; Magnetostriction; Temperature measurement;
Journal_Title :
Magnetics, IEEE Transactions on
