Synthesis and Characterization of Barium Aluminosilicate Glass as the Sealant for Solid Oxide Fuel Cell Application

Document Type: Original Research Article

Authors

Department of Materials Science and Engineering, Shahrood University of Technology, Shahrood, Iran

Abstract

In this study, barium aluminosilicate glass sealant was synthesizedand characterized for Solid Oxide Fuel Cell (SOFC) applications. First, the stoichiometric amounts of powder were mixed and melted at 1330°C for 2h, followed by quenching in water. They were then pressed into cylindrical specimens under load of 200 MPa, followed by sintering at different temperatures. The phase content and microstructure of the samples were analyzed by X-ray Diffraction (XRD) and Scanning Electron Microscope (SEM) methods, respectively. Microhardness and toughness of the sintered samples were investigated by means of Vickers micro-hardness test. Young’s modulus and nano-hardness of the glass sealant were measured by nano-indentation method. The thermal expansion coefficient of the specimens was estimated by a dilatometer. The results showed that after sintering at 750°C, sealants with homogeneous microstructure and high density were obtained. The sealants were characterized by mechanical and thermal properties appropriate for SOFC applications with a very low leak rate.

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Main Subjects


 1.     Jamil, S. M., Othman, M. H. D., Rahman, M. A., Jaafar, J., Ismail, A. F., Li, K., “Recent fabrication techniques for micro-tubular solid oxide fuel cell support: a review”, Journal of the European Ceramic Society, Vol. 35, No. 1, (2015), 1-22. https://doi.org/10.1016/j.jeurceramsoc.2014.08.034

2.     Yano, M., Tomita, A., Sano, M., Hibino, T., “Recent advances in single-chamber solid oxide fuel cells: a review”, Solid State Ionics, Vol. 177, No. 39-40, (2007), 3351-3359. https://doi.org/10.1016/j.ssi.2006.10.014

3.     Mahapatra, M. K., Lu, K., “Seal glass for solid oxide fuel cells”, Journal of Power Sources, Vol. 195, No. 21, (2010), 7129–7139. http://doi.org/10.1016/j.jpowsour.2010.06.003

4.     Fergus, J. W., “Sealants for solid oxide fuel cells”, Journal of Power Sources, Vol. 147, No. 1-2, )2005(, 46-57. https://doi.org/10.1016/j.jpowsour.2005.05.002

5.     Weil, K. S., “The state-of-the-art in sealing technology for solid oxide fuel cells”, JOM, Vol. 58, No. 8, (2006), 37-44. https://doi.org/10.1007/s11837-006-0052-6

6.     Chou, Y. S., Stevenson, J. W., Chick, L. A., “Ultra-low leak rate of hybrid compressive mica seals for solid oxide fuel cells”, Journal of Power Sources, Vol. 112, No. 1, (2002), 130-136. https://doi.org/10.1016/s0378-7753(02)00356-7

7.     Ghosh, S., Sharma, A. D., Kundu, P., Basu, R. N., “Glass-based Sealants for Application in Planar Solid Oxide Fuel Cell Stack”, Transactions of the Indian Ceramic Society, Vol. 67, No. 4, (2008), 161-182. https://doi.org/10.1080/0371750x.2008.11078652

8.     Goel, A., Pascual, M. J., Ferreira, J. M., “Stable glass-ceramic sealants for solid oxide fuel cells: influence of Bi2O3 doping”, International Journal of Hydrogen Energy, Vol. 35, No. 13, (2010), 6911-6923. https://doi.org/10.1016/j.ijhydene.2010.04.106

 9.     Aniseh, N., Rezvani, M., Ghahremanzadeh, H., Tabean, S., “Investigation of crystallization and sinterability properties of BaO-SiO2-Al2O3 glass-ceramics containing K2O and B2O3”, Advanced Ceramic Progress, Vol. 1, No. 3, (2015), 1-10. https://doi.org/10.30501/acp.2015.70005

10.   Lee, H., Kim, U. S., Kim, S. D., Woo, S. K., Chung, W. J., “SiO2–B2O3-BaO-WO3 glasses with varying Al2O3 content as a sealing material for reversible solid oxide fuel cells”, Ceramics International, Vol. 46, No. 11, (2020), 18256-18261. https://doi.org/10.1016/j.ceramint.2020.04.148

11.   Bhattacharya, S., Shashikala, H. D., “Effect of BaO on thermal and mechanical properties of alkaline earth borosilicate glasses with and without Al2O3”, Physica B: Condensed Matter, Vol. 571, (2019), 76-86. https://doi.org/10.1016/j.physb.2019.06.065

12.   Milhans, J., Khaleel, M., Sun, X., Tehrani, M., Al-Haik, M., Garmestani, H., “Creep properties of solid oxide fuel cell glass–ceramic seal G18”, Journal of Power Sources, Vol. 195, No. 11, (2010), 3631-3635. https://doi.org/10.1016/j.jpowsour.2009.12.038

13.   Chou, Y. S., Stevenson, J. W., “Mid-term stability of novel mica-based compressive seals for solid oxide fuel cells”, Journal of Power Sources, Vol. 115, No. 2, (2003), 274-278. https://doi.org/10.1016/s0378-7753(03)00020-x

14.   Stephens, E. V., Vetrano, J. S., Koeppel, B. J., Chou, Y., Sun, X., Khaleel, M. A., “Experimental characterization of glass–ceramic seal properties and their constitutive implementation in solid oxide fuel cell stack models”, Journal of Power Sources, Vol. 193 No. (2), (2009), 625-631. https://doi.org/10.1016/j.jpowsour.2009.02.080

15.   Mahapatra, M. K., Lu, K., “Glass-based seals for solid oxide fuel and electrolyzer cells–a review”, Materials Science and Engineering: R: Reports, Vol. 67, No. 5-6, (2010), 65-85. https://doi.org/10.1016/j.mser.2009.12.002

16.   Yang, Z., Xia, G., Meinhardt, K. D., Weil, K. S., Stevenson, J. W., “Chemical stability of glass seal interfaces in intermediate temperature solid oxide fuel cells”, Journal of Materials Engineering and Performance, Vol. 13, No. 3, (2004), 327-334. https://doi.org/10.1361/10599490419298

17.   Batfalsky, P., Haanappel, V. A. C., Malzbender, J., Menzler, N. H., Shemet, V., Vinke, I. C., Steinbrech, R. W., “Chemical interaction between glass–ceramic sealants and interconnect steels in SOFC stacks”, Journal of Power Sources, Vol. 155, No. 2, (2006), 128-137. https://doi.org/10.1016/j.jpowsour.2005.05.046

18.   Yang, Z., Meinhardt, K. D., Stevenson, J. W., “Chemical compatibility of barium-calcium-aluminosilicate-based sealing glasses with the ferritic stainless steel interconnect in SOFCs”, Journal of the Electrochemical Society, Vol. 150, No. 8, (2003), A1095. https://doi.org/10.1149/1.1590325

19.   Heydari, F., Maghsoudipour, A., Hamnabard, Z., Farhangdoust, S., “Mechanical properties and microstructure characterization of zirconia nanoparticles glass composites for SOFC sealant”, Materials Science and Engineering: A, Vol. 552, (2012), 119-124. https://doi.org/10.1016/j.msea.2012.05.019

20.   Sasmal, N., Garai, M., Karmakar, B., “Influence of Ce, Nd, Sm and Gd oxides on the properties of alkaline-earth borosilicate glass sealant”, Journal of Asian Ceramic Societies, Vol. 4, No. 1, (2016), 29-38. https://doi.org/10.1016/j.jascer.2015.11.002

21.   Dev, B., Walter, M.E., Arkenberg, G.B., Swartz, S.L., “Mechanical and thermal characterization of a ceramic/glass composite seal for solid oxide fuel cells”, Journal of Power Sources, Vol. 245, (2014), 958-966. https://doi.org/10.1016/j.jpowsour.2013.07.054

22.   Bansal, N.P., “Celsian formation in fiber-reinforced barium aluminosilicate glass–ceramic matrix composites”, Materials Science and Engineering: A, Vol. 342, No. 1-2, (2003), 23-27. https://doi.org/10.1016/s0921-5093(02)00313-1

23.   Anstis, G.R., Chantikul, P., Lawn, B.R., Marshall, D.B., “A critical evaluation of indentation techniques for measuring fracture toughness: I, direct crack measurements”, Journal of the American Ceramic Society, Vol. 64, No. 9, (1981), 533-538. https://doi.org/10.1111/j.1151-2916.1981.tb10320.x

24.   Oliver, W.C., Pharr, G.M., “An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments”, Journal of materials research, Vol. 7, No. 6, (1992), 1564-1583. https://doi.org/10.1557/jmr.1992.1564

25.   Meinhardt, K.D., Kim, D.S., Chou, Y.S., Weil, K.S., “Synthesis and properties of a barium aluminosilicate solid oxide fuel cell glass–ceramic sealant”, Journal of Power Sources, Vol. 182, No. 1, (2008), 188-196. https://doi.org/10.1016/j.jpowsour.2008.03.079