ELECTRICAL-RESISTIVITY AND SEEBECK COEFFICIENT OF HOT-PRESSED YBAL3 OVER THE TEMPERATURE-RANGE 150-700 K

YbAl3 specimens were prepared using a hot-pressing technique and the S eebeck coefficient and electrical resistivity measured over the temper ature range 150-700 K in order to assess their potential as thermoelec tric materials. The preliminary results show that YbAl3 possesses an e lectrical power factor double those of the stale-of-the-art thermoelec tric materials based on Bi2Te3 alloys which are employed over the rang e around room temperature and is a promising candidate material for th ermoelectric generation using 'low-temperature' waste heat.