Improved oxidation resistance of thermoelectric skutterudites coated with composite glass
Source abstract
Abstract
Abstract Composite glass coating was fabricated on thermoelectric (TE) skutterudite (SKD) materials by using the dispersion system of modified nano-silica aerogel and micro glass powder. The organosilane was used as the binder in the slurry-blade process and isolated pores in micrometer size are formed due to the decomposition of polymerization product derived from organosilane and nano-silica aerogel particles at high temperature. These pores can effectively decrease the thermal conductivity of coating layer. The composite glass coating shows good stability at 823 K in air. However, significant microstructural changes in the coating were observed after aging at 923 K, at which the isolated micro-sized pores grew to sub-millimeter pores while the continuous composite glass coating was still maintained. The glass coated skutterudite materials show good oxidation resistance, i. e. no oxides are observed even after heating at 923 K in ambient air. The present glass-coating approach is expected to be applied in fabricating skutterudite-based thermoelectric devices.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Gas Sensing Nanomaterials and Sensors · Transition Metal Oxide Nanomaterials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. Filled skutterudite antimonides: a new class of thermoelectric materials10.1126/science.272.5266.1325 ↗
2. High figure of merit in partially filled ytterbium skutterudite materials10.1063/1.1311597 ↗
3. Anomalous barium filling fraction and n-type thermoelectric performance of BayCo4Sb1210.1063/1.1388162 ↗
4. Rapid preparation method of bulk nanostructured Yb0.3Co4Sb12+y compounds and their improved thermoelectric performance10.1063/1.3054158 ↗
5. Recent progress of thermoelectric nano-composites10.3724/SP.J.1077.2010.00561 ↗
6. Skutterudites: a phonon–glass–electron crystal approach to advanced thermoelectric energy conversion applications10.1146/annurev.matsci.29.1.89 ↗
7. New and old concepts in thermoelectric materials10.1002/anie.200900598 ↗
8. Multiple-filled skutterudites: high thermoelectric figure of merit through separately optimizing electrical and thermal transports10.1021/ja111199y ↗
9. Effect of HPT processing on the structure, thermoelectric and mechanical properties of Sr0.07Ba0.07Yb0.07Co4Sb1210.1016/j.jallcom.2012.05.011 ↗
10. High temperature oxidation behavior of cobalt triantimonide thermoelectric material10.1016/j.jallcom.2010.05.160 ↗
11. High temperature sublimation behavior of antimony in CoSb3 thermoelectric material during thermal duration test10.1016/j.jallcom.2010.11.204 ↗
12. Aging effects of large-size n-type CoSb3 prepared by spark plasma sintering10.1016/S0925-8388(02)00902-7 ↗
13. J. Leszczynski, A.L. Malecki, T.K. Wojciechowski, Proceedings of the 5th European Conference on Thermoelectrics, Odessa, Ukraine, September 10–12 2007.
14. Studies on thermal decomposition and oxidation of CoSb310.1007/s10973-011-1461-5 ↗
15. Examination of CeFe4Sb12 upon exposure to air: is this material appropriate for use in terrestrial, high-temperature thermoelectric devices?10.1016/j.jallcom.2010.05.167 ↗
16. G.J. Snyder, T. Caillat, High Efficiency Thermoelectrics Workshop, San Diego, California, February 17–20 2004. 〈http://www.thermoelectrics.caltech.edu/thermoelectrics/engineering.html〉
17. High-temperature oxidation behavior of filled skutterudites YbyCo4Sb1210.1007/s11664-012-2038-1 ↗
18. On the oxidation of EuFe4Sb12 and EuRu4Sb1210.1021/ic200619c ↗
19. Determining the effect of Ru substitution on the thermal stability of CeFe4−xRuxSb1210.1016/j.solidstatesciences.2011.09.008 ↗
20. J. Leszczynski, A. Malecki, K.T. Wojciechowski, Comparison of thermal oxidation behavior of CoSb3 and CoP3, in: Proceedings of the 5th European Conference on Thermoelectrics, Odessa, Ukaine, September 10-12 2007.
21. Tests results and performance comparisons of coated and un-coated skutterudite based segmented unicouples10.1016/j.enconman.2005.03.023 ↗
22. Tests results of skutterudite based thermoelectric unicouples10.1016/j.enconman.2006.06.008 ↗
23. Effects of metallic coatings on the performance of skutterudite-based segmented unicouples10.1016/j.enconman.2006.04.024 ↗
24. F.W. Dynys, M.V. Nathal, J.A. Nesbitt, E.J. Opila, A. Sayir, Sublimation suppression coatings evaluated for advanced thermoelectric materials, in: OH 44135–3191 NASA/TM—2007-214479, Reaserch and Technology, Glenn Research Center, Cleveland, 2006, p. 254. Available from:〈http://www.grc.nasa.gov/WWW/RT/2006/RX/RX34D-opila.html〉
25. K. Zawadzka, E. Godlewska, K. Mars, M. Nocun. Oxidation resistant coatings for CoSb3, in: Proceedings of the 9th European Conference on Thermoelectrics, AIP Conference Proceedings 1449, 2012, pp. 231–234.10.1063/1.4731539 ↗
26. J.S. Sakamoto, G. Snyder, T. Calliat, J.-P. Fleurial, S.M. Jones, J.-A. Palk: US Patent Application no. 20060090475 A1, 04 May 2006.
27. Fabrication and thermal aging behavior of skutterudites with silica-based composite protective coatings10.1016/j.jallcom.2012.02.116 ↗
28. L.D. Chen, L. He, X.Y. Huang, X.Y. Li, X.G. Xia, International Publication number WO 2011/014479 A1, 3 February 2011.
29. Preparation, properties and chemistry of glass-and glass–ceramic-to-metal seals and coatings10.1007/BF00354689 ↗
30. The atomic arrangement in glass10.1021/ja01349a006 ↗
31. Vogel · 1985
32. Diffusion and ionic conduction in oxide glasses10.1088/1742-6596/106/1/012001 ↗
33. Mixed alkaline-earth effects in ions conducting glasses10.1016/S0022-3093(99)00899-6 ↗