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Glass-ceramics owing to a combination of useful properties such as tuneable thermal expansion coefficient (TEC), good mechanical durability and chemical inertness find widespread uses in a variety of applications including seals and coatings. Glass-ceramic-to-metal seals have been fabricated with various silicate, phosphate and borate based oxide glasses depending upon the intended application. In this article, we review our studies on various glass and glass-ceramics materials development with a view to understand bonding behaviour with metals/alloys at ambient and high temperatures through a comprehensive structure property correlation investigations. Detail studies on BaO-CaO-Al2O3-B2O3-SiO2 (BCABS), barium strontium alumino-silicate, and strontium alumino-silicate with different additives (like Nd2O3, La2O3, NiO, TiO2, V2O5, ZrO2, Cr2O3, and P2O5) and barium/strontiun zinc silicate (B/SZS) glass-ceramics for high temperature sealing. We shall illustrate the role of various thermo-physical and structural characterization techniques that allowed optimum selection of materials and processing parameters. We particularly highlight the complementary role of NMR and XRD in studying the material at the short range and long range length scales.


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Some recent studies on glass/glass-ceramics for use as sealants with special emphasis for high temperature applications

Show Author's information G. P. Kothiyala,*( )Madhumita GoswamiaBabita TiwaribKuldeep Sharmaa,cA. Ananthanarayanana,cLionel Montagnec
Glass and Advanced Ceramics Division, Bhabha Atomic Research Centre, Mumbai-400085, India
Technical Physics Division, Bhabha Atomic Research Centre, Mumbai-400085, India
Université Lille Nord de France, UCCS - Unité de Catalyse et Chimie du Solide – UMR CNRS 8181, Ecole Nationale Supérieure de Chimie de Lille, Université des Sciences et Technologies de Lille, BP 108, 59562 Villeneuve d' AscqCedex, France

Abstract

Glass-ceramics owing to a combination of useful properties such as tuneable thermal expansion coefficient (TEC), good mechanical durability and chemical inertness find widespread uses in a variety of applications including seals and coatings. Glass-ceramic-to-metal seals have been fabricated with various silicate, phosphate and borate based oxide glasses depending upon the intended application. In this article, we review our studies on various glass and glass-ceramics materials development with a view to understand bonding behaviour with metals/alloys at ambient and high temperatures through a comprehensive structure property correlation investigations. Detail studies on BaO-CaO-Al2O3-B2O3-SiO2 (BCABS), barium strontium alumino-silicate, and strontium alumino-silicate with different additives (like Nd2O3, La2O3, NiO, TiO2, V2O5, ZrO2, Cr2O3, and P2O5) and barium/strontiun zinc silicate (B/SZS) glass-ceramics for high temperature sealing. We shall illustrate the role of various thermo-physical and structural characterization techniques that allowed optimum selection of materials and processing parameters. We particularly highlight the complementary role of NMR and XRD in studying the material at the short range and long range length scales.

Keywords:

crystallization, sintering, glass-ceramics, solid oxide fuel cells, NMR
Received: 26 March 2012 Accepted: 05 April 2012 Published: 08 September 2012 Issue date: June 2012
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Publication history

Received: 26 March 2012
Accepted: 05 April 2012
Published: 08 September 2012
Issue date: June 2012

Copyright

© The author(s) 2012

Acknowledgements

The authors thank the IFCPAR for funding this work vide project number 4008-1. The FEDER, Region Nord Pas-de-Calais, Ministère de l'Education Nationale de l'Enseignement Supérieur et de la Recherche, CNRS, and USTL are acknowledged for funding of NMR spectrometers. One of the authors (AA) thanks the DAE for awarding him a fellowship. The technical support of L Burylo, N Djelal, V Alaimo and S Bellayer is gratefully acknowledged.

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