dc.contributor.author | Sabato, Antonio G. | |
dc.contributor.author | Rost, Axel | |
dc.contributor.author | Schilm, Jochen | |
dc.contributor.author | Kusnezoff, Mihails | |
dc.contributor.author | Salvo, Milena | |
dc.contributor.author | Chrysanthou, Andreas | |
dc.contributor.author | Smeacetto, Federico | |
dc.date.accessioned | 2019-02-06T17:00:01Z | |
dc.date.available | 2019-02-06T17:00:01Z | |
dc.date.issued | 2019-03-01 | |
dc.identifier.citation | Sabato , A G , Rost , A , Schilm , J , Kusnezoff , M , Salvo , M , Chrysanthou , A & Smeacetto , F 2019 , ' Effect of electric load and dual atmosphere on the properties of an alkali containing diopside-based glass sealant for solid oxide cells ' , Journal of Power Sources , vol. 415 , pp. 15-24 . https://doi.org/10.1016/j.jpowsour.2019.01.051 | |
dc.identifier.issn | 0378-7753 | |
dc.identifier.uri | http://hdl.handle.net/2299/21039 | |
dc.description | © 2019 Elsevier B.V. All rights reserved. | |
dc.description.abstract | A new alkali-containing diopside based glass-ceramic sealant for solid oxide cells was synthesized, characterized and tested. The composition was designed to match the coefficient of thermal expansion (CTE) of Crofer22APU interconnect. The sealant has a glass transition temperature of 600°C, a crystallization peak temperature of 850°C and a maximum shrinkage temperature of 700°C, thus suggesting effective densification prior to crystallization. The CTE of the glass-ceramic is 11.5 10-6 K-1, a value which is compatible with the CTE for Crofer22APU stainless steel. Crofer22APU/glass-ceramic/Crofer22APU joined samples were tested in simulated real-life operating conditions at 800°C in dual atmosphere under an applied voltage, monitoring the electrical resistivity. The effect of two different applied voltages (0.7V and 1.3V) was evaluated. A voltage of 1.3V led to a rapid decrease in the electrical resistivity during the test;such a drop was due to the formation of Cr2O3 “bridges” that connected the two Crofer22APU plates separated by the sealant. There was no decrease in the resistivity when a voltage of 0.7V was applied. Instead,resistivity value remained stable at around 105 Ω cm for the 100h test duration. The degradation mechanisms, due to both the alkali content and the applied voltage, are investigated and discussed. | en |
dc.format.extent | 10 | |
dc.format.extent | 692769 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of Power Sources | |
dc.subject | Alkali | |
dc.subject | Degradation | |
dc.subject | Electrical resistivity | |
dc.subject | Glass-ceramic | |
dc.subject | Sealant | |
dc.subject | Solid oxide cells | |
dc.subject | Renewable Energy, Sustainability and the Environment | |
dc.subject | Energy Engineering and Power Technology | |
dc.subject | Physical and Theoretical Chemistry | |
dc.subject | Electrical and Electronic Engineering | |
dc.title | Effect of electric load and dual atmosphere on the properties of an alkali containing diopside-based glass sealant for solid oxide cells | en |
dc.contributor.institution | School of Engineering and Technology | |
dc.description.status | Peer reviewed | |
dc.date.embargoedUntil | 2020-01-24 | |
dc.identifier.url | http://www.scopus.com/inward/record.url?scp=85060344404&partnerID=8YFLogxK | |
rioxxterms.versionofrecord | 10.1016/j.jpowsour.2019.01.051 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |