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Well-dispersed Y2O3 powders were synthesized by a precipitation method from yttrium nitrate solution using (NH4)2SO4 and PEG4000 as the composite surfactant, and the dispersion mechanism of the composite surfactant was investigated in detail. Furthermore, the grain size, densification, mechanical and optical quality of as-prepared ceramics were also discussed. The dispersion state of both precursors...
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