The Korean Journal of Ceramics

The Korean Ceramic Society (한국세라믹학회)
권호 표지

Structural Investigation of Ground Dickite by X-ray Radial Distribution Function Analysis

  • Hojin Ryu (Division of Inorg. Mater, Korea Research Institute of Chemical Tech) ;
  • Kazumasa Sugiyama (Institute for Advanced Mater. Processing, Tohoku Univ) ;
  • Fumio Saito (Institute for Advanced Mater. Processing, Tohoku Univ) ;
  • Yoshio Waseda (Institute for Advanced Mater. Processing, Tohoku Univ)
  • Published : 1995.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

A structural analysis of dickite prepared by dry grinding with different grinding time has been made by X-ray diffraction. The $SiO_4$ tetrahedra are found to remain unchanged in the ground dickite samples by analysing the radial distribution function(RDF). On the other hand, with an increase of the grinding time a change in oxygen coordination number around aluminum has been quantitatively confirmed. This variation may be attributed to the change of hydroxyl induced by the prolonged grinding.

Keywords

References

  1. J. Min. & Met. Inst. Japan, Met. Trans. v.108 no.3 Effect of Mixed Grinding of Kaolinite-Gibbsite Mixture on Formation of Mullite H.J.Ryu;E.Kasai;F.Saito
  2. Procedings fo Fourth International Symposium on Advanced Nuclear Energy Research-Roles and Direction of Materials Science in Nuclear Technology Effect of Dry Grinding using a Planetary Ball Mill on the Crystal Structure and Superconductivity in the YBa₂Cu₃$O_{x}$ Cermics H..J.Ryu;E.Kasai;K.Sugiyama;F.Saito
  3. Clay Science v.4 Some Effects of Grinding Kaolinite with Calcined Kaolinite S.A.Mishirky;S.Yariv
  4. Chem. Soc. Japan v.32 Effects of Dry Grinding on Kaolin Minerals. Ⅰ. Kaolinite H.Takahashi
  5. Chem. Soc. Japan v.32 Effects of Dry Grinding on Kalin Minerals. Ⅱ. Kibushi-clay H.Takahashi
  6. Clays & Clay Miner v.37 Quantification of Crystalline and Noncrystalline Material in Ground Kaolinite by X-ray Powder Diffaction, Infrared, Solid-state Nuclear Magnetic Resonance, and Chemical-dissolution Analysis H.Kodama;L.S.Kotlyar;J.A.Ripmeester
  7. J. Min. & Met. Inst. Japan v.108 no.3 Effect of Mixed Grinding of Kaolinite-Gibbsite Mixture on Formation of Mullite H.J.Ryu;E.Kasai;F.Saito
  8. J. Chem. Phys. v.50 no.11 Compton Scattering Factors for Aspherical Free Atoms D.T.Cromer
  9. The Structure of Non-Crystalline Materials Y.Waseda
  10. J. Non-Cryst. Solids v.31 Direct Methods for the Determination of Atomic-scale Structure of Amorphous Solids (X-ray, Electron, and Neutron Scattering*) C.N.J.Wagner
  11. Z. Naturforsch v.44a X-ray Structural Study of Ferromagnetic Vitreous $0.5La_{0.7}Sr_{0.3}MnO_{3}0.5B_{2}O_{3}$ E.Matsubara;Y.Waseda;K.Ionmata;S.Hashimoto
  12. J. Non-Cryst. Solids v.103 Structural Study of Binary Phosphate Glasses with MgO, ZnO and CaO by X-ray Diffraction E.Matsubara;Y.Waseda;M.Ashizuka;E.Ishida
  13. X-ray Diffraction B.E.Warren
  14. International Tables for X-ray Crystallography v.Ⅳ Kynoch Press.
  15. J. Appl. Crystallog. v.2 The Structure of Vitreous Silica R.L.Mozzi;B.E.Warren
  16. Sci. Rep. Res. Inst. Tohoku Univ v.A34 Determination of the Structural Parameters of Local Ordering in Oxide Melts and Glasses from X-ray Diffraction Data K.Sugiyama;E.Matsubara;I.K.Suh;Y.Waseda;J.M.Toguri
  17. Clays & Clay Miner v.31 Atom Positions in Highly Ordered Kaolinite P.R.Suitch;R.A.Young
  18. J. Mater. Sci. v.28 Local Ordering Structure of Meta-kaolinite and Meta-dickite by the X-ray Radial Distribution Function Analysis K.Sugiyama;H.J.Ryu;Y.Waseda