Characteristics of a SiO2-B2O3-Al2O3-BaCO3-PbO2-ZnO glass-ceramic sealant for SOFCs

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	Characteristics of a SiO2-B2O3-Al2O3-BaCO3-PbO2-ZnO glass-ceramic sealant for SOFCs
	R. F. Wang; Z. Lu; C. Q. Liu; R. B. Zhu; X. Q. Huang; B. Wei; N. Ai; W. H. Su
	2007
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	432 期号:1-2 页码:189-193
摘要	A glass system based on SiO2-B2O3-Al2O3-BaCO3-PbO2-ZnO was prepared and a sort of compounding was optimized to determine the composition with best performance named AF8. The technical thermal expansion coefficient (t-TEC) is 10.58 x 10(-6) K-1 between 323 and 773 K. The resistivity of AF8 is 1.95 x 10(4) Omega cm at 800 degrees C. The optimum sealing temperature range was 850-880 degrees C. AF8 glass sealant could adhere with electrolyte of yttria stabilized zirconia (YSZ) well and there were no perforative pores in the sealant. The leak rate of AF8 glass was 0.81 x 10(-7) mbar 1 s(-1) cm(-1) at 800 degrees C tested by oxygen coulometric titration which was closed to the required value. Around the sealing temperature, contact angle of AF8 on YSZ is about 110 degrees. This angle can make them adhere well under a suitable pressure, and also avoids glass spreading freely on surface of the electrolyte. All measured results approved that AF8 may become a practical sealant for SOFCs. (c) 2006 Published by Elsevier B.V.
部门归属	harbin inst technol, ctr condensed matter sci & technol, harbin 150001, peoples r china. jilin univ, dept condensed matter phys, changchun 130023, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;lu, z (reprint author), harbin inst technol, ctr condensed matter sci & technol, harbin 150001, peoples r china;wangrf396@163.com lvzhe@hit.edu.cn
关键词	Solid Oxide Fuel Cells Glass Sealant Thermal Expansion Resistivity Contact Angle Oxide Fuel-cells Compressive Mica Seals Microscopy Mg
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WOS记录号	WOS:000245486300039
引用统计	被引频次：38[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33871
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. F. Wang,Z. Lu,C. Q. Liu,et al. Characteristics of a SiO2-B2O3-Al2O3-BaCO3-PbO2-ZnO glass-ceramic sealant for SOFCs[J]. Journal of Alloys and Compounds,2007,432(1-2):189-193.
APA	R. F. Wang.,Z. Lu.,C. Q. Liu.,R. B. Zhu.,X. Q. Huang.,...&W. H. Su.(2007).Characteristics of a SiO2-B2O3-Al2O3-BaCO3-PbO2-ZnO glass-ceramic sealant for SOFCs.Journal of Alloys and Compounds,432(1-2),189-193.
MLA	R. F. Wang,et al."Characteristics of a SiO2-B2O3-Al2O3-BaCO3-PbO2-ZnO glass-ceramic sealant for SOFCs".Journal of Alloys and Compounds 432.1-2(2007):189-193.