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Journal of Advanced Ceramics

, Volume 7, Issue 4, pp 380–387 | Cite as

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

  • Zuzhi Huang
  • Linghong LuoEmail author
  • Liangguang Liu
  • Leying WangEmail author
  • Liang Cheng
  • Xu Xu
  • Yefan Wu
Open Access
Research Article
  • 124 Downloads

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 

Notes

Acknowledgements

This study was financially supported by the research project of National Natural Science Foundation of China (Grant Nos. 51662015 and 51462011).

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© The Author(s) 2018

Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (https://doi.org/creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Key Laboratory of Fuel Cell Materials and DevicesJingdezhen Ceramic InstituteJingdezhenChina
  2. 2.School of Materials Science and EngineeringJingdezhen Ceramic InstituteJingdezhenChina

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