Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Characterization of Vacuum Dried Y, Ba, and Cu Oxalate Precipitates

진공건조에 의한 Y, Ba, Cu 질산염의 Oxalate 침전물에 대한 연구

  • Kim, Bae-Yeon (Department Materials Engineering, University of Incheon) ;
  • Lee, Deuk-Yong (Department Materials Engineering, Daelim College of Technology) ;
  • Kim, Chul-Min (Department Materials Engineering, University of Incheon) ;
  • Lee, Chang-Jae (Department Materials Engineering, University of Incheon) ;
  • Jung, Sung-Sik (Department Materials Engineering, University of Incheon)
  • 김배연 (인천대학교 신소재공학과) ;
  • 이득용 (대림대학 재료공학과) ;
  • 김철민 (인천대학교 신소재공학과) ;
  • 이창제 (인천대학교 신소재공학과) ;
  • 정성식 (인천대학교 신소재공학과)
  • Published : 2007.08.31
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Abstract

Y, Ba and Cu nitrates were precipitated by oxalic acid at pH 4. The Y, Ba and Cu oxalate powders were vacuum dried and characterized by XRD, DT/TGA and etc. Yttrium nitrate precipitated as $NH_4Y(C_2O_4){_2}H_2O$ and converted to $Y_2O_3$ above $450^{\circ}C$. Ba precipitated with two phases, $Ba(HC_2O_4){_2}2H_2O\;and\;Ba(C_2O_4)$. The amount of each precipitates was 4 : 1, Cu precipitated non-hydrated form, $Cu(C_2O_4)$. The vacuum drying was successful to characterize precipitated powder, which had been generally known as amorphous gel.

Keywords

References

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