A low silica, barium borate glass-ceramic for use as seals in planar SOFCs
A low silica, barium borate glass-ceramic for use as seals in planar SOFCs containing 64 mol%BaO, 3 mol%Al2O3and 3 mol%SiO2was studied. Coefficient of thermal expansion (CTE) between 275-550 °C, glass transition temperature (Tg), and dilatometric softening point (Ts) of the parent glass were 11.9 ×...
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th-cmuir.6653943832-597142018-09-10T03:25:28Z A low silica, barium borate glass-ceramic for use as seals in planar SOFCs Nattapol Laorodphan Prachaya Namwong Worapong Thiemsorn Manat Jaimasith Anucha Wannagon Torranin Chairuangsri Materials Science Physics and Astronomy A low silica, barium borate glass-ceramic for use as seals in planar SOFCs containing 64 mol%BaO, 3 mol%Al2O3and 3 mol%SiO2was studied. Coefficient of thermal expansion (CTE) between 275-550 °C, glass transition temperature (Tg), and dilatometric softening point (Ts) of the parent glass were 11.9 × 10-6°C-1, 552 °C, and 558 °C, respectively. Glass-ceramic was produced by devitrification heat treatment at 800 °C for 100 h. It was found that nucleation heat treatment, seeding by 3 wt%ZrO2as glass-composite and pulverization affected the amount, size and distribution of crystalline phases. SEM-EDS and XRD results revealed that crystalline phases presented in the devitrified glass-ceramic were barium aluminate (BaAl2O4), barium aluminosilicate (BaAl2Si2O8) possibly with boron associated in its crystal structure, and barium zirconate (BaZrO3). CTE of the devitrified glass-ceramic was in the range of (10.1-13.0) × 10-6°C-1. Good adhesion was obtained both in the cases of glass and devitrified glass-ceramic with YSZ and AISI430 stainless steel. Interfacial phenomena between these components were discussed. © 2008 Elsevier B.V. All rights reserved. 2018-09-10T03:20:20Z 2018-09-10T03:20:20Z 2009-01-01 Journal 00223093 2-s2.0-57849165530 10.1016/j.jnoncrysol.2008.07.044 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=57849165530&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/59714 |
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Materials Science Physics and Astronomy Nattapol Laorodphan Prachaya Namwong Worapong Thiemsorn Manat Jaimasith Anucha Wannagon Torranin Chairuangsri A low silica, barium borate glass-ceramic for use as seals in planar SOFCs |
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A low silica, barium borate glass-ceramic for use as seals in planar SOFCs containing 64 mol%BaO, 3 mol%Al2O3and 3 mol%SiO2was studied. Coefficient of thermal expansion (CTE) between 275-550 °C, glass transition temperature (Tg), and dilatometric softening point (Ts) of the parent glass were 11.9 × 10-6°C-1, 552 °C, and 558 °C, respectively. Glass-ceramic was produced by devitrification heat treatment at 800 °C for 100 h. It was found that nucleation heat treatment, seeding by 3 wt%ZrO2as glass-composite and pulverization affected the amount, size and distribution of crystalline phases. SEM-EDS and XRD results revealed that crystalline phases presented in the devitrified glass-ceramic were barium aluminate (BaAl2O4), barium aluminosilicate (BaAl2Si2O8) possibly with boron associated in its crystal structure, and barium zirconate (BaZrO3). CTE of the devitrified glass-ceramic was in the range of (10.1-13.0) × 10-6°C-1. Good adhesion was obtained both in the cases of glass and devitrified glass-ceramic with YSZ and AISI430 stainless steel. Interfacial phenomena between these components were discussed. © 2008 Elsevier B.V. All rights reserved. |
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Nattapol Laorodphan Prachaya Namwong Worapong Thiemsorn Manat Jaimasith Anucha Wannagon Torranin Chairuangsri |
author_facet |
Nattapol Laorodphan Prachaya Namwong Worapong Thiemsorn Manat Jaimasith Anucha Wannagon Torranin Chairuangsri |
author_sort |
Nattapol Laorodphan |
title |
A low silica, barium borate glass-ceramic for use as seals in planar SOFCs |
title_short |
A low silica, barium borate glass-ceramic for use as seals in planar SOFCs |
title_full |
A low silica, barium borate glass-ceramic for use as seals in planar SOFCs |
title_fullStr |
A low silica, barium borate glass-ceramic for use as seals in planar SOFCs |
title_full_unstemmed |
A low silica, barium borate glass-ceramic for use as seals in planar SOFCs |
title_sort |
low silica, barium borate glass-ceramic for use as seals in planar sofcs |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=57849165530&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/59714 |
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