Sol-Gel synthesis and phase evolution studies of yttrium silicates

Yttrium silicate powders were synthesised through acid catalysed sol-gel route using Y(NO3)3.6H2O and tetra ethyl ortho silicate (TEOS) as precursors. The crystallographic phases evolved from the prepared gel on calcination at 1100°C were correlated with the experimental parameters used for synthesis. The optimised experimental condition resulted in well defined and crystallised phases of Yttrium disilicate (YDS), yttrium monosilicate (YMS) and...