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Journal of Advanced Ceramics 2018, 7(4): 380-387 https://doi.org/10.1007/s40145-018-0294-0
Research Article | Open Access | Issue | Published: 28 November 2018

Effect of Al2O3 addition on the non-isothermal crystallization kinetics and long-term stability of BCABS sealing glass for IT-SOFCs

Show Author's Information Zuzhi HUANGa,b,  Linghong LUOa,b( ),  Liangguang LIUa,b,  Leying WANGa,b( ),  Liang CHENGa,  Xu XUa,b,  Yefan WUa
Key Laboratory of Fuel Cell Materials and Devices, Jingdezhen Ceramic Institute, Jingdezhen 333403, China
School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China
Keywords:
intermediate temperature-solid oxide fuel cell (IT-SOFC), BaO–CaO–Al2O3–B2O3–SiO2 (BCABS) sealing glass, Al2O3, non-isothermal crystallization kinetics, long-term stability
Cite this article:
HUANG Z, LUO L, LIU L, et al. Effect of Al2O3 addition on the non-isothermal crystallization kinetics and long-term stability of BCABS sealing glass for IT-SOFCs. Journal of Advanced Ceramics, 2018, 7(4): 380-387. https://doi.org/10.1007/s40145-018-0294-0
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Abstract Full text About this article

Owing to adjustable thermal expansion performance, BaO–CaO–Al2O3–B2O3–SiO2 (BCABS) glass has a promising commercialization prospect for intermediate temperature-solid oxide fuel cells (IT-SOFCs) sealing. Herein, Al2O3 with two different contents was added into the same glass formulation, referred to as A and B glass, respectively. In terms of the non-isothermal crystallization kinetic behavior, the effect of Al2O3 as the unique intermediate was innovatively studied on the long-term performance of BCABS sealing glass. After the heat treatment at 1023 K for 100 h, the change of the network structure and the expansion coefficient of the glass were characterized. The results showed that the addition of Al2O3 as a network forming body could enhance the structure of glass, and increase the activation energy for glass transition, which could effectively inhibit the crystallization ability of sealing glass. Therefore, the B glass with the higher Al2O3 content showed the better long-term sealing ability, which was greatly beneficial for IT-SOFCs sealing.


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About this article

Effect of Al2O3 addition on the non-isothermal crystallization kinetics and long-term stability of BCABS sealing glass for IT-SOFCs

Show Author's information Zuzhi HUANGa,b, Linghong LUOa,b( ), Liangguang LIUa,b, Leying WANGa,b( ), Liang CHENGa, Xu XUa,b, Yefan WUa
Key Laboratory of Fuel Cell Materials and Devices, Jingdezhen Ceramic Institute, Jingdezhen 333403, China
School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China

Abstract

Owing to adjustable thermal expansion performance, BaO–CaO–Al2O3–B2O3–SiO2 (BCABS) glass has a promising commercialization prospect for intermediate temperature-solid oxide fuel cells (IT-SOFCs) sealing. Herein, Al2O3 with two different contents was added into the same glass formulation, referred to as A and B glass, respectively. In terms of the non-isothermal crystallization kinetic behavior, the effect of Al2O3 as the unique intermediate was innovatively studied on the long-term performance of BCABS sealing glass. After the heat treatment at 1023 K for 100 h, the change of the network structure and the expansion coefficient of the glass were characterized. The results showed that the addition of Al2O3 as a network forming body could enhance the structure of glass, and increase the activation energy for glass transition, which could effectively inhibit the crystallization ability of sealing glass. Therefore, the B glass with the higher Al2O3 content showed the better long-term sealing ability, which was greatly beneficial for IT-SOFCs sealing.

Keywords: intermediate temperature-solid oxide fuel cell (IT-SOFC), BaO–CaO–Al2O3–B2O3–SiO2 (BCABS) sealing glass, Al2O3, non-isothermal crystallization kinetics, long-term stability

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Publication history

Received: 27 April 2018
Revised: 28 July 2018
Accepted: 09 August 2018
Published: 28 November 2018
Issue date: December 2018

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© The author(s) 2018

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