Processing of Aqueous Tape Casting of Glass-Ceramic in the SiO2-Al2O3-MgO-Li2O System with ZrO2 and B2O3 Addition

Mariane Silva da Silveira; Cristina Moniz Araujo Lopes; Francisco C.L. Melo; Rosa Maria Rocha

doi:10.4028/www.scientific.net/MSF.881.71

Paper Titles

Evaluation of Mechanochemical and Hydrothermal Transformations in a Wet-Milled Alumina by Transmission Electron Microscopy and Thermal Analysis
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Porous Ceramics Obtained by Slip/Starch Casting Consolidation Method (SSCC)
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Organic Additives Used as Binders and Pore-Forming Elements of TIO₂ Ceramics
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Obtaining and Characterization of Porous Bodies Obtained by Gelatinization
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Processing of Aqueous Tape Casting of Glass-Ceramic in the SiO₂-Al₂O₃-MgO-Li₂O System with ZrO₂and B₂O₃ Addition
p.71

Devitrification in SiO₂-B₂O₃-Al₂O₃-La₂O₃-TiO₂ Glass during the Infiltration of Ceramic Composite
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Crystallization Kinetics of β-Spodumene/Cordierite-Based Glass-Ceramics
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Development of α-Al₂O₃ Ceramics for Bottom of Sintering Impeller Furnace
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Effect of TiB₂ on Pressureless Sintering and Hot Pressing of ZrB₂
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HomeMaterials Science ForumMaterials Science Forum Vol. 881Processing of Aqueous Tape Casting of...

Processing of Aqueous Tape Casting of Glass-Ceramic in the SiO₂-Al₂O₃-MgO-Li₂O System with ZrO₂and B₂O₃ Addition

Abstract:

The aim of this work was to fabricate glass-ceramic substrates using aqueous tape casting technique of the parent glass powder in the SiO₂-Al₂O₃-MgO-Li₂O system with addition of ZrO₂ and B₂O₃_. The powder mixture was melted at 1650°C/1h and the obtained glass (frit) was milled and processed by tape casting in thin substrates with 700 μm thickness. Suspensions were prepared by aqueous medium and latex emulsion binder. Flexible green tapes with few defects were obtained using suspensions prepared with 7 and 10 wt% of binder in relation to glass powder. Substrates were submitted to burn out at 700 °C and thermal treatment at 950 oC/30min, 950 oC/4h and 1000 °C/1h. The green density of the substrates was around 1.55 g/cm³ and 2.10 g/cm³ after sintering/crystallization. Microstructure in all treatments showed high porosity. The major crystalline phases identified by XRD were Li_0,6Al_0,6Si_2,4O₆, ZrO₂ and ZrSiO₄.

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Materials Science Forum (Volume 881)

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71-76

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.881.71

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November 2016

Authors:

Mariane Silva da Silveira, Cristina Moniz Araujo Lopes, Francisco C.L. Melo, Rosa Maria Rocha

Keywords:

Crystallization, Glass, Glass-Ceramics, SiO₂-Al₂O₃-Mgo-Li₂O System, Tape Casting

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