Title :
Preparation and characterization of thermoelectric /spl beta/-FeSi2 phase dispersed with Si
Author :
Min, Byoung-Gue ; Jang, Kyung-Wook ; Lee, Dong-Hi
Author_Institution :
Dept. of Metall. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
Heat treatment of a single phase of Fe-Si system produced eutectoid microstructures consisted of /spl beta/ and Si phases. The volume fraction of Si dispersoids, 0.1/spl sim/0.25 /spl mu/m in size, was controlled by varying Si content within the compositional range of /spl alpha/ single phase. The dispersed Si particles in the /spl beta/ matrix acted as effective scattering centers for carriers as well as phonons.
Keywords :
crystal microstructure; electrical resistivity; grain size; heat treatment; iron compounds; semiconductor growth; semiconductor materials; silicon; thermal conductivity; thermoelectric power; 0.1 to 0.25 mum; FeSi/sub 2/-Si; effective scattering centers; eutectoid microstructures; thermoelectric /spl beta/-FeSi/sub 2/ phase dispersed with Si; Conductivity measurement; Dispersion; Heat treatment; Iron; Lattices; Microstructure; Particle scattering; Phonons; Thermal conductivity; Thermoelectricity;
Conference_Titel :
Thermoelectrics, 1996., Fifteenth International Conference on
Print_ISBN :
0-7803-3221-0
DOI :
10.1109/ICT.1996.553258
