| Full text | |
| Author(s): |
Soares, Viviane Oliveira
;
Zanotto, Edgar Dutra
Total Authors: 2
|
| Document type: | Journal article |
| Source: | International Journal of Applied Ceramic Technology; v. 13, n. 5, p. 948-955, SEP-OCT 2016. |
| Web of Science Citations: | 1 |
| Abstract | |
Dense (similar to 98.5%), lithium aluminum silicate glass-ceramics were obtained via the sinter-crystallization of glass particle compacts at relatively low temperatures, that is, 790-875 degrees C. The effect of P2O5 on the glass-ceramics' sinter-crystallization behavior was evaluated. We found that P2O5 does not modify the surface crystallization mechanism but instead delays the crystallization kinetics, which facilitates viscous flow sintering. Our glass-ceramics had virgilite (LixAlxSi3-xO6; 0.5 < x < 1), a crystal size <1 m, and a linear thermal expansion coefficient of 2.1 x 10(-6)degrees C-1 in the temperature range 40-500 degrees C. The overall heat treatment to obtain these GCs was quite short, at similar to 25 min. (AU) | |
| FAPESP's process: | 13/07793-6 - CEPIV - Center for Teaching, Research and Innovation in Glass |
| Grantee: | Edgar Dutra Zanotto |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |