Lv Bin, Xu Xu-dong, Xu Ting
Jun 21, 2011
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Journal
Chinese Journal of Materials Research
Abstract
The hydrated basic carbonate-sulfate precursor was synthesized using scandium sulfate as mother liquor and urea as a precipitating agent by a microwave heating approach.The phase transformation processes of the precipitate precursor were analyzed by DSC/TG,FTIR and XRD.Two synthesis methods of Sc_2O_3 powder were compared.The results showed that highly pure,ultrafine,well dispersed,narrow particle size distribution and spherical Sc_2O_3 nanopowders can be obtained by calcination at 1000℃for 3 h in resistance furnace or irradiation at 900℃for 20 min in microwave furnace.