한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제23권2호
  • /
  • Pages.21-30
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  • 1986
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

습식법에 의한 초미립 $SrTiO_3$ 분말 합성

Synthesis of Submicron $SrTiO_3$ Powders by Wet Process

  • 발행 : 1986.02.01
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초록

Pure submicron $SrTiO_3$ powders had been synthesized with chemical wet process that $5N-NH_4OH$ solution was sprayed into the mixed solution of $SrTiO_3$, $TiCl_4$ and $H_2O_2$ with $N_2$ carrier gas. The characteristic properties of powders obtained from this experiment were as follows. The optimum synthesis condition in reaction bath was above PH 8.5 and under $25^{\circ}C$ The particle size of precipitated SrTiO(OH) powders dried at 6$0^{\circ}C$ was under 0.01${\mu}{\textrm}{m}$ and uniform. Amorphous precipitated complex powders emitted adsorbed water at 15$0^{\circ}C$ less that and crystalline $SrTiO_3$powders was produced from calcining the complex at 30$0^{\circ}C$. Sintered body of SrTiO3 fired at 133$0^{\circ}C$ showed that relative dielectric constant was 228 at 1MHZ and bulk density was 4.73g/$cm^3$.

키워드

참고문헌

  1. J. Chem. Phys. v.48 no.5 Raman Spectrum of Strontium Titanate W. G. Nilsen;J. G. Skinner
  2. Materials Science Research v.11 M. Paulus
  3. Solid State Commum. v.31 no.12 Tetragonal SrTiC₃ Pevisited:The Effect of Impurities on the Raman Spectrum W. Taylor;A. F. Murray
  4. J. Solid State Chem. v.39 no.3 Electrical Conductivity in Strontium Titanate U. Balachandran;N. G. Eron
  5. セラミソク誘電體工學(第三版) 岡崎淸
  6. セラミツクス v.5 no.11 エレクトロセラミソク用粉末の化學的 合成 體佐木宏
  7. セラミツクス v.6 no.10;11 セラミソクスの製造フロセス 田崎潤三;尾崎義冶;水谷性恭
  8. JAPAN ANALYST v.22 沈殿による分離 吉田仁志
  9. セラミクス v.12 no.5 セラミソクス原料粉末の混合狀態の評價 大塚寬治;宇體美保
  10. Am. Ceram. Soc. Bull. Preparation of Stoichiometric Barium Titanyl Oxalate Tettrahydrate Katsuya Kudaka;Kiyokata Lizumi
  11. J. Am. Ceram. Soc. v.46 no.11 Diffusion Sintering D. Lynn Johnson;Ivan B. Cutler
  12. Phys. Rev. v.115 no.1 Electron Paramagnetic Resonance in SrTiO₃ W. I. Dobrov;R. F. Viethand;M. E. Browne
  13. Phys. Rev. v.127 no.3 Electron Paramagnetic Resonance of $Gd^{3+}$ L. Rimai;G. A. deMars
  14. Phys. Rev. v.126 no.5 Farinfrared Dielectric Dispersion in BaTiO₃, SrTiO₃ and TiO₂ W. G. Spizer;R. C. Miller;D. A. Kleinman;L. E. Howarth
  15. J. App. Phys. v.35 no.7 X-ray Diffractometry of low Temperature Phase Transformations in Strontium Titanate Farrel W. Lytle
  16. J. Phys. Chem. v.72 no.9 Solid-State Reactions of SrCO₃+TiO₂ N. H. Harris;R. L. Cook
  17. J. Am. Ceram. Soc. v.52 no.9 Phase Equilibria in the 1375 ℃ Isotherm if the System Sr-Ti-O Gregory J. McCarthy;William B. White;Rustum Roy