Abstract
Abstract The process of isothermal sintering of magnesium oxide obtained from sea water (by precipitation with 80% and 120% of the stoichiometric quantity of the precipitation agent respectively) and of reagent grade magnesium oxide was examined with addition of 0·5% TiO2, at a temperature of 1600°C, for different durations of isothermal sintering and for different pressures applied in the forming of compacts. Product density, shrinkage and porosity were examined, and the results obtained were analysed mathematically. The effect of the TiO2 in the magnesium oxide sample on the content of B2O3 was also determined. Coefficients have been calculated for associated reactions, namely those for the formation of Ca2B2O5 and CaTiO3.
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