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The influence of Co and Fe on the color change of diopside crystals

Co, Fe가 diopside 결정색 변화에 미치는 영향

  • Byeon, Soo Min (Dept. of Materials Science & Engineering, Myong-Ji University) ;
  • Lee, Byung-Ha (Dept. of Materials Science & Engineering, Myong-Ji University)
  • 변수민 (명지대학교 공과대학 신소재공학과) ;
  • 이병하 (명지대학교 공과대학 신소재공학과)
  • Received : 2014.08.21
  • Accepted : 2014.09.19
  • Published : 2014.10.31

Abstract

This study was conducted to study the influence of Co and Fe on the color of glaze and diopside crystals in the diopside crystal glaze empirically produced and used by ceramic artists, in case of adding $Co_3O_4$ and $Fe_2O_3$. As a result, the color of glaze was blue when $Co_3O_4$ was added to the diopside crystal glaze and the diopside crystals appeared pastel violet with Co included. When $Fe_2O_3$ was added to the diopside crystal glaze, the color of glaze appeared brown and the color of diopside crystals was goldenrod with Fe included. The crystals precipitated on the surface of diopside consisted of diopside crystals and diopside precursors. With longer retention time, the amount of diopside precursors decreased and the amount of diopside crystals increased. Also, Co was more easily included by the diopside crystals than Fe was and crystallizability of dispside was improved in case of including Co. Including Fe lowered peak intensity of properties and partially dissolved the diopside crystals.

본 연구에서는 도예가들이 경험적으로 제조하여 사용하는 diopside 결정유약에 $Co_3O_4$$Fe_2O_3$를 첨가하였을 경우 Co와 Fe이 유약과 diopside 결정의 발색에 미치는 영향을 연구하고자 하였다. 그 결과 diopside 결정유약에 $Co_3O_4$를 넣을 경우 유약의 색상은 blue색을 띠며 결정의 색상은 diopside 결정에 Co가 고용되면서 pastel violet색을 띠었으며 diopside 결정유약에 $Fe_2O_3$를 넣을 경우 유약의 색상은 brown색을, 결정의 색상은 diopside 결정에 Fe가 고용되면서 goldenrod색을 띠었다. 그리고 diopside 결정유약 표면에 석출된 결정은 diopside 결정과 diopside precursor로 이루어져 있었다. 또한 유지시간이 길어짐에 따라 diopside precursor의 량은 줄고 diopside 결정량은 많아졌다. Diopside 결정에는 Fe보다는 Co가 더 잘 고용되었으며, Co가 고용될 경우 diopside 결정성은 더 좋아져 특성 peak의 강도가 높아졌다. 그리고 Fe이 고용되면 특성 peak의 강도는 낮아지면서 diopside 결정은 부분적으로 와해됨을 알 수 있었다.

Keywords

References

  1. C.-Y. Lee, "A Study on the crystal growth and color development mechanism in zinc crystalline glazes" (Myong-Ji University, Yongin, 2010) p. 18.
  2. S. Youeich, "Glaze and pigment", H.-S Lee, 1 (Dae Kwang Bookstore, Seoul, 1997) p. 190.
  3. B.-H. Lee, "Make of glaze own", B.-H. Han, 3 (Yekyong Publishing, Seoul, 2008) p. 32.
  4. K.-J. Seo, "Monthy ceramic art", T. W. Kim, 20(5) (Monthy Ceramics, Seoul, 1997) p. 37.
  5. S. Youeich, "Glaze and pigment", H.-S. Lee, 1 (Dae Kwang Bookstore, Seoul, 1997) p. 93.
  6. J. Chavarria, "Glazing techniques", M. F. Canal (Watson-Guptill Public Ations, New York, 1999) p. 43.
  7. H. Takashima, "Science of pottery glazs", U. Satoru (Uchida Rokakuho Publishing Co.Ltd, Tokyo, 1994) p. 303.
  8. H.F. Shurvell, L. Rintoul and P.M. Fredericks, "Lnfrared and raman spectra of jade and jade minerals", Int. J. Vibr. Spec. [www.ijvs.com] 5 (2001) 4.
  9. H. Takashima, "Science of pottery glazs", U. Satoru (Uchida Rokakuho Publishing Co. Ltd., Tokyo, 1994) p. 105.