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http://dx.doi.org/10.4191/kcers.2019.56.2.06

Compositional Effect of SiO2-B2O3-BaO Ternary Glass System for Reversible Oxide Cell Sealing Glass  

Lee, Han Sol (Institute for Rare Metals & Division of Advanced Materials Engineering, Kongju National University)
Kim, Sung Hyun (Institute for Rare Metals & Division of Advanced Materials Engineering, Kongju National University)
Kim, Sun Dong (Energy Materials Laboratory, Korea Energy Research Institute)
Woo, Sang Kuk (Energy Materials Laboratory, Korea Energy Research Institute)
Chung, Woon Jin (Institute for Rare Metals & Division of Advanced Materials Engineering, Kongju National University)
Publication Information
Journal of the Korean Ceramic Society / v.56, no.2, 2019 , pp. 173-177 More about this Journal
Abstract
Thermal properties of a SiO2-B2O3-BaO ternary glass system depending on compositional change of BaO have been examined to find a proper sealing material for reversible oxide cells. Glass transition temperature and thermal expansion coefficients increased simultaneously up to 55 mol% of BaO content. The structural role of BaO with regard to the thermal properties has been discussed on the basis of Raman spectroscopy results. Flowability of the glass at sealing temperature has been examined with packed glass powders of 12 mm diameter along with a high temperature optical microscope. The practical sealing property of the glass was also examined with YSZ coated with NiO-yittria stabilized zirconia (NiO-YSZ) and it showed good adhesion without noticeable reaction with NiO-YSZ layer.
Keywords
Glass; Silicates; Sealing; Fuel cell; Thermal properties;
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