hide
Free keywords:
-
Abstract:
Several CoTiSb based compounds were synthesized and investigated on
their thermoelectric properties. The aim was to improve the
thermoelectric properties of CoTiSb by the systematic substitution of
atoms or the introduction of additional Co into the vacant sublattice.
The solid solutions Co(1+x)TiSb, Co(1-y)Cu(y) TiSb and CoTiSb(1-z)Bi(z)
were synthesized. X-ray diffraction was used to investigate the crystal
structure. The resistivity, the Seebeck coefficient and the thermal
conductivity were determined for all compounds in the temperature range
from 2 to 400 K. The highest figure of merit for each solid solution is
presented. We were able to improve the figure of merit by a factor of
approximately seven.
