Effects of MgO Addition on Densification and Microstructural Development during Liquid-Phase Sintering of Alumina-Anorthite System

알루미나-anorthite 계의 액상소결에서 MgO의 첨가가 치밀화 및 미세구조에 미치는 영향

  • 김호양 (경북대학교 무기재료공학과) ;
  • 이정아 (경북대학교 무기재료공학과) ;
  • 김정주 (경북대학교 무기재료공학과)
  • Published : 1999.11.01


Densification behavior and microstructural evolution during the liquid-phase sintering of alumina-anorhite system were investigated as a function of MgO addition. When MgO component was added in either alumina or anorthite glass powder the aspect ratio of alumina grains decreased and concurrently the are of flat interface which was formed as a result of contact solid alumina gains rather increased. Consequently addition of MgO component in the Al2O3-amorthite system brought about suppression of the rearrangement of solid grains during the liquid phase sintering and then densification of specimens was also retarded.


  1. Sintering of Advanced Ceramics v.7 A History of the Role of MgO in the Sintering of α-Al₂O₃ S.J. Benntson;M.P. Harmer;C.A. Handwerker(et al.)
  2. J. Am. Ceram. Soc. v.68 no.7 Role of Solute Segregation at Grain Boundaries during Final-Stage Sintering of Alumina P.J. Jorgensen;J.H. Westbrook
  3. J. Am. Ceram. Soc. v.68 no.1 Grain-Growth Kinetic for Alumina in the Absence of a Liquid Phase S.J. Bennison;M.P. Harmer
  4. J. Am. Ceram. Soc. v.72 no.7 Mechanism for the Role of Magnesia in the Sintering of Alumina Containing Small Amount of a Liquid Phase C.A. Bateman;S.J. Bennison;M.P. Harmer
  5. J. Am. Ceram. Soc. v.70 no.7 Penetration of Polyery-stalline Alumina by Glass at High Temperatures P.L. Flaitz;J.A. Pask
  6. Science of Ceramics v.10 Influence of MgO on Liquid Phase Sintering and Solid Phase Sintering of Al₂O₃ M. Sprissler;W.A. Kaysser;J. Huppmann;G. Petzow;H. Hausner(ed.)
  7. J. Am. Ceram. Soc. v.70 no.5 Effect of Liquid Phase on the Morphology of Grain Growth in Alumina W.A. Kaysser;M. Sprissler;C.A. handwerker;J.E. Blendell
  8. J. Appl. Phys. v.30 no.3 Densification during Sintering in the Presence of a Liquid Phase:I, Theory W.D. Kingery
  9. J. Appl. Phys. v.30 no.3 Densification during Sintering in the Presence of a Liquid Phase:II, Experimental W.D. Kingery;M.D. Narasimhan
  10. Processing of Crystalline Ceramics v.II Rearrangement during Liquid Phase Sintering of Ceramics W.J. Huppmann;S. Pejovnik;S.M. Han;H.Palmour III(ed.);R.F. Davis(ed.);T.M. Hare(ed.)
  11. Sintering Theory and Practice R.M. German
  12. Ceramic Microstructures'86·Role of Interfaces v.21 The Wetting and Dewetting of Grain Boundaries D.R. Clark;J.A. Pask(ed.);A.G. Evans(ed.)
  13. Science of Sintering v.10 no.2 Sintering of Al₂O₃ in Presence of Liquid Phase S. Pejovnik;D. Kolar;W.I. Huppmann;G. Petzow
  14. J. Am. Ceram. Soc v.71 no.6 Indirect Dissolution of Sapphire into Silicate Melts K.H. Sandhage;G.J. Yurek
  15. Quantitative Stereology E.E. Underwood
  16. Sintering Theory and Practice R.M. German
  17. Phase Diagram for Ceramusts v.Fig. 633 G.A. Rankin;F.E. Wright;E.M. Levin(ed.);C.R. Robbins(ed.);H.F. mcMurdie(ed.);M.K. Reser(ed.)
  18. Trans. Brit. Ceram. Soc. v.64 no.4 The Kinetics of Grain Growth in Two-phase(Solid-Liquid)Systems D.S. Buist;B. Jackson;I.M. Stephenson;W.F. Ford;J. White
  19. J. Ceram. Soc. Jpn. v.102 no.1 Behavior of Tale in Formation of Cordierite Ceramic M. Nakahara;Y. hashizuka;Y. Kondo;K. Hamano
  20. Inter. J. Powder Metall. Powder Tech. v.17 Closure of isolated Pores in Liquid Phase Sintering of W-Ni O.J. Kwon;D.N. Yoon
  21. J. Am. Ceram. Soc. v.70 no.10 Effect of Sintering Atmosphere on Isolated Pores During the Liquid-Phase Sintering of MgO-CaMgSiO₄ J.J. Kim;B.K. Kim;B.M. Song;D.Y. Kim;D.N. Yoon
  22. J. Am. Ceram. Soc. v.81 no.1 Infiltration of Glass Melts into Fully Dense Al₂O₃ and MgO Ceramics J.J. Kim;M.P. Harmer
  23. The Solid-Liquid Interface D.P. WoodRuff
  24. J. Am. Ceram. Soc. v.73 no.12 Microstructure of 96% Alumina Ceramics: I, Characterization of the As-sintered Materials C.A. Powell-Dogan;A.H. Heuer
  25. J. Am. Ceram. Soc. v.74 no.10 Forces between Aluminum Oxide Grains in a Silicate melt and Their Effect on Grain Boundary Wetting T.M. Shaw;P.R. Duncombe