SiC-B4C composites with various values of SiC-to-B4C ratio and grain size were fabricated by pressureless sintering. This paper presents the results of current investigations of this composite material. This includes the parameters of manufacture (shrinkage, density, and open porosity), thermoelectric properties (electrical and thermal conductivity, and thermopower), and material characterization (x-ray diffraction, scanning electron microscopy, oxidation resistance, and thermal expansion). The results indicate high potential of this composite as an alternative material for thermoelectric applications at high temperatures. The Seebeck coefficient of the composite was higher than that of the single-component materials B4C and SiC and reached 400 μV/K at 500°C.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T. Goto. J. Li, and T. Hirai, Proceedings of the ICCM-11 (1997).
M. Uehara, R. Shiraishi, A. Nogami, N. Enomoto, and J. Hojo, J. Eur. Ceram. Soc. 24, 409 (2004).
A.F. Ioffe, Halbleiter-Thermoelemente (Berlin: Akademie-Verlag, 1957).
H. Tanaka, N. Hirosaki, and T. Nishimura, J. Ceram. Soc. Jpn. 111, 878 (2003).
D.H. Riu, R. Choi, H.E. Kim, and E.S. Kang, J. Mater. Sci 30, 3897 (1995).
J.Y.W. Seto, J. Appl. Phys. 46, 5247 (1975).
A. Kondo, J. Ceram. Soc. Jpn. 100, 1204 (1992).
T.N. Nazarchuk and L.N. Mekhanoshina, Sov. Powder Metall. Met. Ceram. 3, 123 (1964).
Yu, G. Gogotsi, V.P. Yaroshenko, and F. Porz, J. Mater. Sci. Lett. 11, 308 (1992).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lankau, V., Martin, HP., Hempel-Weber, R. et al. Preparation and Thermoelectric Characterization of SiC-B4C Composites. J. Electron. Mater. 39, 1809–1813 (2010). https://doi.org/10.1007/s11664-010-1129-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11664-010-1129-0