Thermoelectric Performance of Half-Heusler TiNiSn Alloys Fabricated by Solid-Liquid Reaction Sintering

Yoshisato Kimura; Chihiro Asami; Yaw Wang Chai; Yoshinao Mishima

doi:10.4028/www.scientific.net/MSF.654-656.2795

Paper Titles

Synthesis and Characterization of the Layered Hybrids (C_nH_2n+1NH₃)2MCl₄ (M=Co,Cu,Zn and n=2,4,6,8,10,12)
p.2779

Effects of Carbon Black and Carbon Nanotube on Mechanical and Thermal Properties of 80NR/20SBR Composites
p.2783

Fabrication of Solid Oxide Fuel Cells via Thin Film Techniques
p.2787

Superior Radiation Resistance of ODS Ferritic Steels
p.2791

Thermoelectric Performance of Half-Heusler TiNiSn Alloys Fabricated by Solid-Liquid Reaction Sintering
p.2795

Broad-Band Vibro-Impacting Energy Harvester
p.2799

Structural Design for the Development of the Floating Type Photovoltaic Energy Generation System
p.2803

Fabrication of Nanocrystalline TiO₂ Films by Aerosol Deposition Method for Dye-Sensitized Solar Cells
p.2807

Variation of Heat Dissipation Properties of LED Packages with Thermal Vias
p.2811

HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Thermoelectric Performance of Half-Heusler TiNiSn...

Thermoelectric Performance of Half-Heusler TiNiSn Alloys Fabricated by Solid-Liquid Reaction Sintering

Abstract:

A new fabrication process was proposed for half-Heusler type TiNiSn thermoelectric alloys. Based on the result that the TiNiSn phase can be formed easily at the Sn(Liquid)/TiNi(Solid) interface, the liquid-solid reaction-sintering process was developed using TiNi and Sn powders. The TiNi compound powders were prepared by the atomization method using argon gas atmosphere. We have fabrictaed nearly single-phase TiNiSn alloys and evaluated their thermoelectrical properties; the presnt TiNiSn alloys have large electrical power factor of about 3.5 mWm-1K-2, and the maximum value of dimensionless figure of merit, ZT = 0.67, can be achieved at around 700 K even without tuning of the carrier concentration through alloying elements.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 654-656)

Pages:

2795-2798

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.2795

Citation:

Cite this paper

Online since:

June 2010

Authors:

Yoshisato Kimura, Chihiro Asami, Yaw Wang Chai, Yoshinao Mishima

Keywords:

Diffusion Path, Half-Heusler Compounds, Phase Equilibrium, Solid-Liquid Reaction Sintering, Thermoelectric Material

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] F.G. Aliev, N.B. Brandt, V.V. Moshchalkov, V.V. Kozyrkov, R.V. Skolozdra, and A.I. Belogorokhov: Z. Phys. B: Condens. Matter. Vol. 75 (1989), p.167.

Google Scholar

[2] T. Katayama, S. -W. Kim, Y. Kimura and Y. Mishima: J. Electronic Mater. Vol. 32 (2003), p.1160.

Google Scholar

[3] Y. Kimura, T. Kuji, A. Zama, Y. Shibata and Y. Mishima: MRS Symp. Proc., Vol. 886, Materials and Technologies for Direct Thermal-to-Electric Energy Conversion, Mater. Res. Soc., Pittsburgh, PA, (2006), p.331.

Google Scholar

[4] S. Bhattacharya, A.L. Pope, R.T. Littleton IV, T.M. Tritt, V. Ponnambalam, Y. Xia and S.J. Poon: Appl. Phys. Lett., Vol. 77 (2000), p.2476.

DOI: 10.1063/1.1318237

Google Scholar

[5] H. Muta, T. Kanemitsu, K. Kurosaki and S. Yamanaka: Journal of Alloys and Compounds, Vol. 469 (2009), p.50.

Google Scholar

[6] C. Asami, Y. Kimura, T. Kita and Y. Mishima: MRS Symp. Proc., Vol. 1128, Advanced Intermetallic-Based Alloys for Extreme Environment and Energy Applications, Mater. Res. Soc., Pittsburgh, PA, (2009).

Google Scholar