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Journal of the Korean Ceramic Society 1996;33(7): 743. |
| Modified Oxalate Process에 의한 (Ba,Pb)$TiO_3$ 분말합성 및 특성에 관한 연구 |
| 최병현, 이미재, 박선미, Torii Y1 |
요업기술원
1일본 나고야 공업기술연구소 |
| A Study on the Synthesis and Properties of (Ba,Pb)$TiO_3$Powder by Modified Oxalate Process |
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| ABSTRACT |
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In this study (Ba1-xPbx)TiO3 was synthesized by modified oxalate process in order to prevent vaporization of PbO through low temperature synthesis climinate Cl ion reproducibly substitute Pb for by and uniformly distribute ion (Ba1-xPbx)TiO3 was synthesized by coprecipitation of lead acetate barium acetate and ammonium titanyl oxalate have been used as starting materials. The substitution of Pb for Ba was reproducibly possible synthetic temperature of perovskite structure becomes lowed as the Pb concentration increases and fine partic-les (specific surface are :7.2 cm2/g) were obtained, BaTiO3 powders calcined at 90$0^{circ}C$ for 3 hours were cubic from in XRD analysis and as Pb content was increases evident split of tetragonal peaks could be observed The optimum conditions to synthesize (Ba,Pb)TiO3 powder are the followings ; synthesis temperature (5$^{circ}C$) |
| Key words:
Modified axalate process, Coprecipitation, (Ba,Pb)$TiO_3$, Cubic form tetragonal split |
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