DocumentCode :
2327087
Title :
Thermoelectric properties of MNiSn (M=Ti,Zr,Hf) single crystals and related alloys
Author :
Käfer, W. ; Fess, K. ; Kloc, Ch ; Friemelt, K. ; Bucher, E.
Author_Institution :
Konstanz Univ., Germany
fYear :
1997
fDate :
26-29 Aug 1997
Firstpage :
489
Lastpage :
492
Abstract :
During the last few years a growing interest in new material classes for thermoelectric applications, such as intermetallic compounds, could be observed. Among others, the compounds MNiSn (where M=Ti,Zr,Hf) represent one of those systems and prompted us to study their properties thoroughly. In contrast to the commonly used arc melting followed by long time heat treatment, we prepared our samples by melting the elements using a Sn flux technique. The composition and structural quality was checked by different techniques, including X-ray diffraction and energy dispersive X-ray analysis EDX. We determined the thermoelectric properties over a wide temperature range and were able to evaluate the figure of merit in the range between 90 and 360 K. To reduce the thermal conductivity the possibility of alloying these ternaries was explored
Keywords :
electrical resistivity; hafnium alloys; nickel alloys; semiconductor materials; thermal conductivity; thermoelectric power; tin alloys; titanium alloys; zirconium alloys; 90 to 360 K; EDX; HfNiSn; Sn flux technique; TiNiSn; X-ray diffraction; ZrNiSn; alloys; composition; energy dispersive X-ray analysis; figure of merit; intermetallic compounds; single crystals; structural quality; thermal conductivity; thermoelectric properties; Crystalline materials; Crystals; Dispersion; Heat treatment; Intermetallic; Temperature distribution; Thermal conductivity; Thermoelectricity; Tin; X-ray diffraction;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Thermoelectrics, 1997. Proceedings ICT '97. XVI International Conference on
Conference_Location :
Dresden
ISSN :
1094-2734
Print_ISBN :
0-7803-4057-4
Type :
conf
DOI :
10.1109/ICT.1997.667192
Filename :
667192
Link To Document :
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