| Si01 has been sintered in the presence of a silicate liquid containing
CaO 23 %, AI20 1 15% and Si01 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 Si01• 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
Si01 sintered with much faster rate than -75 + 63 micron. |
