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http://hdl.handle.net/10773/19281
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DC Field | Value | Language |
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dc.contributor.author | Reddy, Allu Amarnath | pt |
dc.contributor.author | Tulyaganov, Dilshat U. | pt |
dc.contributor.author | Pascual, Maria J. | pt |
dc.contributor.author | Kharton, Vladislav V. | pt |
dc.contributor.author | Tsipis, Ekaterina V. | pt |
dc.contributor.author | Kolotygin, Vladislav A. | pt |
dc.contributor.author | Ferreira, Jose M. F. | pt |
dc.date.accessioned | 2017-12-07T19:07:18Z | - |
dc.date.issued | 2013 | pt |
dc.identifier.issn | 0360-3199 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/19281 | - |
dc.description.abstract | This article reports on the influence of strontium for calcium substitution in diopside-Ba disilicate glass-ceramics on stabilization thermal parameters and improvement adhesion to interconnect material of SOFCs. Sr replaced 10, 20, 30 and 40% of Ca in the Ca0.9MgAl0.1La0.1Si1.9O6 component of the parent glass having the following composition, mol.%: 22.14 CaO, 24.60 MgO, 0.52 BaO, 1.23 Al2O3, 1.23 La2O3, 47.79 SiO2, 1.69 B2O3, 0.79 NiO. Si-29-MAS-NMR and Al-27 MAS-NMR spectra of the glasses revealed irrelevant chemical shifts for silicon and aluminum atoms upon changing the SrO content. T-g decreased and coefficient of thermal expansion (CTE) increased by Sr for Ca substitution in pyroxene glasses. Additionally SrO-containing glasses exhibited a viscosity of similar to 10(6) dPa s at 900 degrees C, which is suitable for joining of SOFC metallic/ceramic components by glass/glass-ceramic sealing upon stack hermetization. Glass-ceramics revealed long term (up to 1000 h) thermal stability at 900 degrees C and suitable CTE values (10.0-11.3) x 10(-6) K-1, high electrical resistivity, good adhesion and minimal reactivity with SOFC components. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. | pt |
dc.language.iso | eng | pt |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/114209/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | OXIDE FUEL-CELLS | pt |
dc.subject | STRONTIUM SUBSTITUTION | pt |
dc.subject | SEALING GLASS | pt |
dc.subject | CRYSTALLIZATION | pt |
dc.subject | BEHAVIOR | pt |
dc.subject | VISCOSITY | pt |
dc.subject | KINETICS | pt |
dc.subject | ALLOY | pt |
dc.subject | JOIN | pt |
dc.subject | 45S5 | pt |
dc.title | Diopside-Ba disilicate glass-ceramic sealants for SOFCs: Enhanced adhesion and thermal stability by Sr for Ca substitution | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 3073 | pt |
degois.publication.issue | 7 | pt |
degois.publication.lastPage | 3086 | pt |
degois.publication.title | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | pt |
degois.publication.volume | 38 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1016/j.ijhydene.2012.12.074 | pt |
dc.identifier.doi | 10.1016/j.ijhydene.2012.12.074 | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Diopside-Ba disilicate glass-ceramic sealants for SOFCs Enhanced adhesion and thermal stability by Sr for Ca substitution_10.1016j.ijhydene.2012.12.074.pdf | 2.08 MB | Adobe PDF |
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