Development of magnesium-aluminum-silicate glass-ceramics nucleated with Nb2O5

Benitez T, Veber A, Furlan KP, Reboucas LB, de Ligny D, Hotza D, Novaes De Oliveira AP, Travitzky N (2019)

Publication Type: Journal article

Publication year: 2019

Journal

International Journal of Applied Glass Science Wiley

DOI: 10.1111/ijag.13874

Abstract

The influence of nucleating agents and heat-treatments on magnesium-aluminum-silicate (MAS) glass-ceramics was studied. MAS precursor glasses were melted in oxidant (air) and reducing atmospheres. Nb2O5, MoO3 and TiO2+ZrO2 were added as nucleating agents at the same molar proportion (1.0%). MAS glass-ceramics nucleated with Nb2O5 are strike face candidates for security windows when relevant outputs are taken into account, such as transparency, crack resistance, hardness and feasibility. Nb2O5-doped MAS can achieve up to 20% crystalline volume fraction, while keeping the visible transparency close to 70%. Knoop hardness was raised up to 7.4 GPa in comparison to precursor glass (6.2 GPa), considering the indentation size effect. The crack resistance reached 4 N.

Authors with CRIS profile

Alexander Veber Lehrstuhl für Glas und Keramik Dominique de Ligny Professur für Werkstoffwissenschaften (Glas und Keramik) Nahum Travitzky Lehrstuhl für Glas und Keramik

Involved external institutions

Federal University of Santa Catarina / Universidade Federal de Santa Catarina (UFSC) BR Brazil (BR) Technische Universität Hamburg-Harburg (TUHH) DE Germany (DE)

How to cite

APA:

Benitez, T., Veber, A., Furlan, K.P., Reboucas, L.B., de Ligny, D., Hotza, D.,... Travitzky, N. (2019). Development of magnesium-aluminum-silicate glass-ceramics nucleated with Nb2O5. International Journal of Applied Glass Science. https://dx.doi.org/10.1111/ijag.13874

MLA:

Benitez, Tobias, et al. "Development of magnesium-aluminum-silicate glass-ceramics nucleated with Nb2O5." International Journal of Applied Glass Science (2019).

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