Glass-ceramic sealants and steel interconnects: Accelerated interfacial stability and reactivity tests at high temperature

High-temperature reactions between glass–ceramic sealants and Fe-Cr alloy interconnects may lead to the formation of undesirable phases, and consequently degradation of solid oxide fuel/electrolyser devices. In this work, three different glass–ceramic sealants (Na-containing, Ba-containing, Sr-conta...

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Autores principales:	A. Drewniak, D. Koszelow, P. Błaszczak, K. Górnicka, K. Jurak, H. Javed, A.G. Sabato, P. Jasiński, S. Molin, F. Smeacetto
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Stainless steel powder Glass–ceramic sealants Reactivity High temperature corrosion Solid oxide cells Interface Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/720ea0b22287464aa999c9c91abec559
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spelling	oai:doaj.org-article:720ea0b22287464aa999c9c91abec5592021-11-20T04:55:46ZGlass-ceramic sealants and steel interconnects: Accelerated interfacial stability and reactivity tests at high temperature0264-127510.1016/j.matdes.2021.110259https://doaj.org/article/720ea0b22287464aa999c9c91abec5592021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0264127521008145https://doaj.org/toc/0264-1275High-temperature reactions between glass–ceramic sealants and Fe-Cr alloy interconnects may lead to the formation of undesirable phases, and consequently degradation of solid oxide fuel/electrolyser devices. In this work, three different glass–ceramic sealants (Na-containing, Ba-containing, Sr-containing compositions) and Fe22Cr stainless steel powders (raw and pre-oxidised) are considered in order to test their chemical reactivity at 750 °C and 850 °C for 500 h in static air. The novelty of this approach is related to the use of powder mixtures instead of studying the reactivity on planar interfaces, which allows a better evaluation the materials’ reactivity. Oxidation tests indicate that the Sr-containing glass–ceramic/steel couple is the least reactive among the aged samples. For the Ba-containing samples, the formation of an undesirable phase of BaCrO4 is observed by diffractometry and photoelectron spectroscopy analyses. The present research explores, for the first time, the effects of exposing the high surface area of the alloy powder and glass–ceramic sealant interface, assessed by oxidation testing and microstructural analysis. The results show that by using mixed powders with large interface surface areas, degradation of the materials can be observed after relatively short times, allowing accelerated screening of the reactivity of materials, and thus their further development.A. DrewniakD. KoszelowP. BłaszczakK. GórnickaK. JurakH. JavedA.G. SabatoP. JasińskiS. MolinF. SmeacettoElsevierarticleStainless steel powderGlass–ceramic sealantsReactivityHigh temperature corrosionSolid oxide cellsInterfaceMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110259- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Stainless steel powder Glass–ceramic sealants Reactivity High temperature corrosion Solid oxide cells Interface Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Stainless steel powder Glass–ceramic sealants Reactivity High temperature corrosion Solid oxide cells Interface Materials of engineering and construction. Mechanics of materials TA401-492 A. Drewniak D. Koszelow P. Błaszczak K. Górnicka K. Jurak H. Javed A.G. Sabato P. Jasiński S. Molin F. Smeacetto Glass-ceramic sealants and steel interconnects: Accelerated interfacial stability and reactivity tests at high temperature
description	High-temperature reactions between glass–ceramic sealants and Fe-Cr alloy interconnects may lead to the formation of undesirable phases, and consequently degradation of solid oxide fuel/electrolyser devices. In this work, three different glass–ceramic sealants (Na-containing, Ba-containing, Sr-containing compositions) and Fe22Cr stainless steel powders (raw and pre-oxidised) are considered in order to test their chemical reactivity at 750 °C and 850 °C for 500 h in static air. The novelty of this approach is related to the use of powder mixtures instead of studying the reactivity on planar interfaces, which allows a better evaluation the materials’ reactivity. Oxidation tests indicate that the Sr-containing glass–ceramic/steel couple is the least reactive among the aged samples. For the Ba-containing samples, the formation of an undesirable phase of BaCrO4 is observed by diffractometry and photoelectron spectroscopy analyses. The present research explores, for the first time, the effects of exposing the high surface area of the alloy powder and glass–ceramic sealant interface, assessed by oxidation testing and microstructural analysis. The results show that by using mixed powders with large interface surface areas, degradation of the materials can be observed after relatively short times, allowing accelerated screening of the reactivity of materials, and thus their further development.
format	article
author	A. Drewniak D. Koszelow P. Błaszczak K. Górnicka K. Jurak H. Javed A.G. Sabato P. Jasiński S. Molin F. Smeacetto
author_facet	A. Drewniak D. Koszelow P. Błaszczak K. Górnicka K. Jurak H. Javed A.G. Sabato P. Jasiński S. Molin F. Smeacetto
author_sort	A. Drewniak
title	Glass-ceramic sealants and steel interconnects: Accelerated interfacial stability and reactivity tests at high temperature
title_short	Glass-ceramic sealants and steel interconnects: Accelerated interfacial stability and reactivity tests at high temperature
title_full	Glass-ceramic sealants and steel interconnects: Accelerated interfacial stability and reactivity tests at high temperature
title_fullStr	Glass-ceramic sealants and steel interconnects: Accelerated interfacial stability and reactivity tests at high temperature
title_full_unstemmed	Glass-ceramic sealants and steel interconnects: Accelerated interfacial stability and reactivity tests at high temperature
title_sort	glass-ceramic sealants and steel interconnects: accelerated interfacial stability and reactivity tests at high temperature
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/720ea0b22287464aa999c9c91abec559
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Glass-ceramic sealants and steel interconnects: Accelerated interfacial stability and reactivity tests at high temperature

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