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LZSA glass-ceramic laminates: Fabrication and mechanical properties

✍ Scribed by Cynthia M. Gomes; Antonio P.N. Oliveira; Dachamir Hotza; Nahum Travitzky; Peter Greil

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
992 KB
Volume
206
Category
Article
ISSN
0924-0136

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✦ Synopsis

The aim of this work was to fabricate LiO 2 -ZrO 2 -SiO 2 -Al 2 O 3 (LZSA) glass-ceramics laminates by laminated object manufacturing (LOM) and to characterise some properties of the laminates before and after sintering. Correlations between green tape properties, produced by aqueous tape casting, and the green and sintered laminate properties were also determined. Processing optimisation was based on a factorial design. The microstructure of the LZSA glass-ceramic laminates showed a homogeneous distribution of porosity and the main phases were identified as being ␀-spodumene and lithium metasilicate. Laminates with a 0 β€’ /90 β€’ layer orientation attained a significantly higher bending strength of 120 MPa compared to 70 MPa for the 90 β€’ /90 β€’ orientation.

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