A Study on the Cobalt Blue Spinel Stains

코발트 청색 채색료에 대한 연구

  • 박순자 (서울대 공대 요업공학과)
  • Published : 1978.02.01

Abstract

The cobalt blue spinel stains (main composition; CoO:$Al_2O_3$=1 : 1) in CoO-NiO-$Al_2O_$3 and $CoO-Al_2O_3-Cr_2O_3$ system were prepared by the calcination of each component oxides to be adequate for the factory. The color development, the change of the lattice constnat of the spinel and its application to colored glazes were studied. The results were summarized as follows. 1) In CoO-Al_2O_3$ spinel, the excess addition of each component hardly made any variation in lattice constantand alumina-rich spinel specimens caused the brilliant blue color fade. 2) An increase of $Ni^{2+}$ in $CoO-NiO-Al_2O_3$ system, made the lattice constnat of the $CoO-Al_2O_3$ spinel smaller, and an increase of $Cr^{3+}$ in $CoO-Al_2O_3-Cr_2O_3$, larger. 3) Glazed stains under lead glaze were colored nearly same dark blue color fade.

Keywords

References

  1. ibid v.84 no.11 Study on the solid solution between CoO·Al₂O₃ and Al₂O₃ T. Moori
  2. Yogyo-Kyokai-shi v.84 no.9 Study on synthesis of CoO·Al₂O₃ spinel T. Moori
  3. ibid v.84 no.B Formation and color of the spinel solid solution in CoO-MgO-Al₂O₃-Cr₂O₃-SnO₂ system A. Ohtsuka;H. shimazu
  4. ibid v.82 no.12 Precise Measurement of the crystal data and the solid solution range of the defective spinel, MgO·nAl₂O₃. Kouhei Shirasuka;Goro Yamaguchi
  5. ibid v.83 no.2 Crystal structure of a defective spinel, CoO·3Al₂O₃, constituting cobalt blue pigment G. Yamaguchi;H.Miyabe
  6. ibid v.84 no.11 Formation and color of the spinel solid solution in CoO-MgO-Al₂O₃-Cr₂O₃-TiO₂ system A. Ohtsuka;S. Fujiwara
  7. ibid v.84 no.2 Formation and color of the spinel solid solutin in CoO-ZnO-Al₂O₃-Cr₂O₃-System A. Ohtsuka;H. Haneda
  8. J. Am. Cer. Soc. v.50 no.10 Stability of Mullite as derived from equilibria in the system CoO-Al₂O₃-SiO₂ R. R. Dayal;R. E. Johnson;A. Muan.
  9. Structural Inorganic Chemistry A. F. Wells
  10. ibid v.84 no.10 Formation and color of the spinel solid solution in CoO-ZnO-Al₂O₃-Cr₂O₃-TiO₂ system A. Ohtsuka;K. Kazama