| Studies on the Sinterability of Pure and AI203 Containing
Forsterite Prepared from Rice Husk Ash |
B. MoNDAL, S. K. SuNDARAM AND A. N. VIRKAR
Pages : 128-131
DOI : 10.1080/0371750X.1985.10822762 |
| Abstract |
| Forsterite (2Mg0.Si02), a well-known non-feldspathic high frequency
insulator (5 MHzs), was prepared by using magnesite/MgC03
and rice husk ash obtained after controlled burning as a source of
MgO and Si02 respectively and sintered at 1200°,1250° and 1300°C
for 1, 2, 3 and 4 hrs at each temperature. Effect of minor additive
like AI,03 (added up to 5 wt %) on sintering was studied. Data were
analysed using the empirical equation D = K log t + C and Arrhenius
equation. Addition of 5 wt% Al20 3 has shown higher density (2.5
gm.cm-3) than that of pure forsterite (2.06 gm.cm-3) fired at 1300°C
for 4 hours. |
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