| Slurr법에 의한 $Pb(Mg_{1/3}Nb_{2/3})O_3-PbTiO_3$계 미분말의 성형과 소결성 |
| 김복희, 최석홍1 |
전북대학교 재료공학과
1한국티타늄공업(주) 부설뉴세라믹연구소 |
| Shaping and Sintering of $Pb(Mg_{1/3}Nb_{2/3})O_3-PbTiO_3$ System powders by Slurry Process |
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| ABSTRACT |
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Green sheet was prepared by tape casting in the composition of (1-x)Pb(Mg1/3Nb2/3)O3-PbTiO3 system using Pb(Mg1/3Nb2/3)O3 and PbTiO3 synthesized with PbO, Nb2O5 MgO and TiO2 The densest green sheet was obtained in the weight ratio 70:30 of powder to binder. Green sheet wasmultilayered in metal mould and formed into lamination at 7$0^{circ}C$, 300kg/cm2 The lamination was sintered at 110$0^{circ}C$ 2hr, Dielectric constant and Curie temperature of disc type sintered body was highered with increasing the amount of PbTiO3 and was in the range of 19000-21000, -7~45$^{circ}C$ respectively. Green and sintered relative density of lamination was 61% and 95% respectively. |
| Key words:
Tape casting, $Pb(Mg_{1/3}Nb_{2/3})O_3-PbTiO_3$, Multilayer, Dielectric constant, Green density |
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