Effect of Al2O3 content on BaO-Al2O3-B2O3-SiO2 glass sealant for solid oxide fuel cell

被引：89

作者：

Sun, Tao ^{[1
]}

Xiao, Hanning ^{[1
,2
]}

Guo, Wenming ^{[1
]}

Hong, Xiucheng ^{[2
]}

机构：

[1] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China

[2] Changsha Univ Sci & Technol, Coll Phys & Elect Sci, Changsha 410076, Hunan, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2010年 / 36卷 / 02期

关键词：

BaO-Al2O3-B2O3-SiO2; glass; SOFC sealant; Glass structure; Wetting behavior; SYSTEMS RO-BAO-SIO2 R; CRYSTALLIZATION KINETICS; CERAMIC SEALANTS; BARIUM; MG; INTERCONNECT; ZN; IR;

D O I：

10.1016/j.ceramint.2009.09.045

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The glass structure, wetting behavior and crystallization of BaC-Al2O3-B2O3-SiO2 system glass containing 2-10 mol% Al2O3 were investigated. The introduction of Al2O3 caused the conversion of [BO3] units and [BO4] units to each other and it played as glass network former when the content was up to 10 mol%, accompanied by [BO4] -> [BO3]. The stability of the glass improved first and then decreased as Al2O3 increased from 2 to 10 mol%, the glass with 5 mol% Al2O3 being the most stable one. The wetting behavior of the glasses indicates that excess Al2O3 leads to high sealing temperature. The glass containing 5 mol% Al2O3 characterized by a lower sealing temperature is suitable for SOFC sealing. Al2O3 improves the crystallization temperature of the glass. The crystal phases in the reheated glasses are mainly composed of Ba2Si3O8, BaSiO3, BaB2O4 and BaAl2Si2O8. Al2O3 helps the crystallization of BaSiO3 and BaAl2Si2O8. (C) 2009 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：821 / 826

页数：6

共 30 条

[1] Radiation effects on PbO-Al2O3-B2O3-SiO2 glasses by FTIR spectroscopy [J].

Arora, Monika ;

Baccaro, S. ;

Sharma, G. ;

Singh, D. ;

Thind, K. S. ;

Singh, D. P. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2009, 267 (05) :817-820

[2] Crystallization kinetics of a solid oxide fuel cell seal glass by differential thermal analysis [J].

Bansal, NP ;

Gamble, EA .

JOURNAL OF POWER SOURCES, 2005, 147 (1-2) :107-115

[3] Chemical interaction between glass-ceramic sealants and interconnect steels in SOFC stacks [J].

Batfalsky, P ;

Haanappel, VAC ;

Malzbender, J ;

Menzler, NH ;

Shemet, V ;

Vinke, IC ;

Steinbrech, RW .

JOURNAL OF POWER SOURCES, 2006, 155 (02) :128-137

[4] Comparison between barium and strontium-glass composites for sealing SOFCs [J].

Brochu, M. ;

Gauntt, B. D. ;

Shah, R. ;

Miyake, G. ;

Loehman, R. E. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2006, 26 (15) :3307-3313

[5] Structure and crystallization kinetics of PbO-B2O3 glasses [J].

Cheng, Yin ;

Xiao, Hanning ;

Guo, Wenming ;

Guo, Weiming .

CERAMICS INTERNATIONAL, 2007, 33 (07) :1341-1347

[6] Structure and crystallization kinetics of Bi2O3-B2O3 glasses [J].

Cheng, Yin ;

Xiao, Hanning ;

Guo, Wenming ;

Guo, Weiming .

THERMOCHIMICA ACTA, 2006, 444 (02) :173-178

[7] Effect of compositional changes on the structure and properties of alkali-alumino borosilicate glasses [J].

Darwish, H ;

Gomaa, MM .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2006, 17 (01) :35-42

[8] Quantitative IR spectroscopy: Applications to studying glass structure and properties [J].

Efimov, AM .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1996, 203 :1-11

[9] Sealants for solid oxide fuel cells [J].

Fergus, JW .

JOURNAL OF POWER SOURCES, 2005, 147 (1-2) :46-57

[10] Microstructure and property evaluation of barium aluminosilicate glass-ceramic sealant for anode-supported solid oxide fuel cell [J].

Ghosh, Saswati ;

Kundu, P. ;

Das Sharma, A. ;

Basu, R. N. ;

Maiti, H. S. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2008, 28 (01) :69-76

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