The effect of zirconia nanoparticles addition on thermal and electrical properties of BaO-CaO-Al2O3-B2O3-SiO2 glass for solid oxide fuel cell sealant
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The objective of the present work is to study properties of a composite material consisting of zirconia nanoparticles in a glass matrix based on the system of BaO-CaO-SiO2-B2O3-Al2O3. Zirconia nanoparticles are added by 0-20 vol.% into the glass matrix to prepare the glass composites. Coefficient of thermal expansion, glass transition temperature and dilatometric softening point temperature of specimens are determined by means of dilatometry analysis. Coefficient of thermal expansion of base glass is 10.38 × 10−6 k−1 and by increasing zirconia content to 10, 15, and 20 vol.%, coefficient of thermal expansion reduces down to 9.88 × 10−6 , 9.84 × 10−6 and 9.76 × 10−6 k−1 respectively. Sinterability of different specimens is studied by increasing zirconia nanoparticles. Electrical properties are measured in different temperatures, and results show that with increment of zirconia nanoparticles, temperature resistivity of specimens has been decreased. Microstructural investigation reveals a well-adhered bonding between the sealants and electrolyte.
Abstract
The objective of the present work is to study properties of a composite material consisting of zirconia nanoparticles in a glass matrix based on the system of BaO-CaO-SiO2-B2O3-Al2O3. Zirconia nanoparticles are added by 0-20 vol.% into the glass matrix to prepare the glass composites. Coefficient of thermal expansion, glass transition temperature and dilatometric softening point temperature of specimens are determined by means of dilatometry analysis. Coefficient of thermal expansion of base glass is 10.38 × 10−6 k−1 and by increasing zirconia content to 10, 15, and 20 vol.%, coefficient of thermal expansion reduces down to 9.88 × 10−6 , 9.84 × 10−6 and 9.76 × 10−6 k−1 respectively. Sinterability of different specimens is studied by increasing zirconia nanoparticles. Electrical properties are measured in different temperatures, and results show that with increment of zirconia nanoparticles, temperature resistivity of specimens has been decreased. Microstructural investigation reveals a well-adhered bonding between the sealants and electrolyte.
참고문헌 (17)
- F. heydari, "Evaluation on Properties of CaO-BaO-B2O3-Al2O3-SiO2 Glass-Ceramic Sealants for Intermediate Temperature Solid Oxide Fuel Cells", Journal of Materials Science & Technology, 29(1), pp.49~54 (2013)
- I.W.Donald, "Review, Preparation, Properties and Chemistry of Glass- and Glass-Ceramic-to-Metal Seal and Coatings", J. Mater. Sci, 28, pp.2841~2886 (1993)
- M. K. Mahapatra, "Glass-based seals for solid oxide fuel and electrolyzer cells-a review", Sci Eng R, 67, pp.65~85 (2010)
- F. heydari, "Mechanical properties and microstructure characterization of zirconia nanoparticles glass composites for SOFC sealant", J. Mater. Sci. Eng. A, 552, pp.119~124 (2012)
- S. Sakuragi, "Non-alkaline glass-MgO Composites for SOFC sealant", J. Power Sources, 185, pp.1311~1314 (2008)
- P. W. Mcmillan, "Glass-ceramics", pp.229~235 (1979), Academic press
- Z. strand, "Nucleation and Crystallization in Glasses", pp.268~280 (1986), Elsevier
- R. N. Singh, "Sealing technology for solid oxide fuel cells (SOFC)", J. Appl. Ceram. Technol, 134, pp.134~144 (2007)
- S.R. Choi, "Mechanical and microstructural characterization of boron nitride nanotubesreinforced SOFC seal glass composite", J. Mater. Sci. Eng. A, 460-461, pp.509~515 (2007)
- T.J. Kohli, "European Patent EP. 0982274A2", ~ (2000)
- M. Brochu, "Comparison between barium and strontium-glass composites for sealing SOFCs", J. Eur. Ceram. Soc, 26, pp.3307~3313 (2006)
- S. B. Sohn, "Stable sealing glass for planar SOFCs", J. Am. Ceram. Soc, 87, pp.254~260 (2004)
- N. Lahl, "Crystallization kinetics in AO-Al2O3-SiO2-B2O3 glass (A = Ba, Ca, Mg)", J. Mater. Sci, 35, pp.3089~3096 (2000)
- N. P. Bansal, "Crystallization kinetics of a solid oxide fuel cell seal glass by differential thermal analysis", J. power sources, 147, pp.107~115 (2005)
- Saswati Ghosh, "Development and characterizations of BaO-CaO-Al2O3-SiO2 glass-ceramic sealants for intermediate temperature solid oxide fuel cell application", J.Trans. Ind. Ceram. Soc, 67(4), pp.161~182 (2008)
- M. Montazerian, "Processing and properties of a mica–apatite glass-ceramic reinforced with Y-PSZ particles", J. Eur. Ceram. Soc, 28, pp.2693~2699 (2008)
- K. A. Nielsen, "Glass composite seals for SOFC application", J. Eur. Ceram. Soc, 27, pp.1817~1822 (2007)