Effect of the Addition of TiO sub(2) Nanoparticles on the Sinterability of a Glass Belonging to the LZSA Glass-Ceramic System

Effect of the Addition of TiO sub(2) Nanoparticles on the Sinterability of a Glass Belonging to the LZSA Glass-Ceramic System

In this work aqueous ceramic suspensions were prepared from a parent glass-ceramic powder (3.8 mu m) belonging to the LZSA (Li sub(2)O-ZrO sub(2)-SiO sub(2)-Al sub(2)O sub(3)) system without or with additions of different volume fractions (1.0-7.5%) of TiO sub(2) nanoparticles (25 nm). The obtained...

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Veröffentlicht in:Materials science forum 2014-01, Vol.775-776, p.92-96
Hauptverfasser: Cesconeto, Francielly Rousseng, de Moraes, Graziela G, Neto, Joao Batista Rodrigues, Raupp-Pereira, Fabiano, Hotza, Dachamir, de Oliveira, Antonio Pedro Novaes
Format: Artikel
Sprache:eng
Schlagworte:
Ceramics
Density
Glass ceramics
Nanoparticles
Shrinkage
Sintering
Slip casting
Titanium dioxide
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Zusammenfassung:In this work aqueous ceramic suspensions were prepared from a parent glass-ceramic powder (3.8 mu m) belonging to the LZSA (Li sub(2)O-ZrO sub(2)-SiO sub(2)-Al sub(2)O sub(3)) system without or with additions of different volume fractions (1.0-7.5%) of TiO sub(2) nanoparticles (25 nm). The obtained suspensions were Theologically characterized so that stable suspensions were defined e formed by slip casting. The obtained compacts were sintered (850-950[degrees]C/60 min) and their green and sintered densities were determined and related to linear shrinkage measurements. The results showed that samples sintered at 950oC for 60 min with 1.0% TiO sub(2) addicted presented linear shrinkage of 12% and relative densities of 97%.
ISSN:0255-5476
DOI:10.4028/www.scientific.net/MSF.775-776.92