Liquid Phase Sintering of Silica
- 1 January 1981
- journal article
- research article
- Published by Taylor & Francis in Transactions of the Indian Ceramic Society
- Vol. 40 (2) , 44-48
- https://doi.org/10.1080/0371750x.1981.10822518
Abstract
SiO2 has been sintered in the presence of a silicate liquid containing CaO 23%, AlO2O3 15% and SiO2, 62%. Silicon dioxide powders of -45 and -75 + 63 micron particle sizes were taken and sintered with 10, 15 and 20% by weight liquid phase. Sintering temperatures were 1250°, 1300°, 1350° and 1400°C and soaking periods were from 1 to 30 minutes. Effects of liquid content of the compact and the sintering temperature were studied for the two particle sizes of SiO2. Data were analysed using the empirical equation D = K log t + C and Arrhenius equation. It was found that activation energy of sintering decreased with the increasing amount of liquid phase and -45 micron SiO2 sintered with much faster rate than -75+63 micron.Keywords
This publication has 3 references indexed in Scilit:
- Studies on the Sintering of Silicon DioxideTransactions of the Indian Ceramic Society, 1977
- Sintering of Oxide and Carbide‐Metal Compositions in Presence of a Liquid PhaseJournal of the American Ceramic Society, 1961
- Densification during Sintering in the Presence of a Liquid Phase. I. TheoryJournal of Applied Physics, 1959