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Pechini법에 의한 Y-doped SrTiO<sub>3</sub> 분말의 합성
윤미영,송락현,신동열,황해진,Yoon, Mi-Young,Song, R.H.,Shin, D.R.,Hwang, Hae-Jin 한국분말야금학회 2010 한국분말재료학회지 (KPMI) Vol.17 No.1
8 mol% Y-doped $SrTiO_3$ powder was synthesized by Pechini method from titanium isopropoxide, strontium nitrate, yttrium nitrate, citric acid and ethylene glycol. A $Y_2Ti_2O_7$ pyrochlore phase-free perovskite powder was obtained by calcining a polymeric resin, which was prepared from a precursor solution, at $500^{\circ}C$ in an air atmosphere. Low temperature calcination could lead to a fine-grained microstructure. In the case of a solid-state reaction, an extended heat-treatment at high temperature in a reduced atmosphere needed to obtain a single phase perovskite $SrTiO_3$.