Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Phase Separation in $Nd_2$$O_3$-${Al_2}{O_3}-{SiO_2}-{TiO_2}$Glass

$Nd_2$$O_3$-${Al_2}{O_3}-{SiO_2}-{TiO_2}$유리계의 상분리현상

  • 최우형 (순천대학교 공과대학 재료.금속공학과) ;
  • 김형순 (순천대학교 공과대학 재료.금속공학과)
  • Published : 2000.11.01
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Abstract

TiO$_2$를 포함한 희토류 알루미노 규산염계 (NAS: Nd$_2$O$_3$-Al$_2$O$_3$-SiO$_2$) 유리의 상분리 현상에 대하여 연구되었다. 0~10wt%의 TiO$_2$포함한 NAS 조성은 유리전이온도(T$_{g}$) 부근에서 열처리하여 HF로 부식 후 주사전자현미경, 라만 및 IR 분석기로 상분리가 조사되었다. 그 결과로 상분리한 내부결정화는 8wt% 이상의 TiO$_2$를 포함한 NAS 조성에서 나타났다. 어닐링후 T$_{g}$ 부근에서 열처리의 결과는 투명 연핑크색의 유리를 불투명의 연푸른 우유빛 색으로 변하게 하였으며, Si와 Nd-Ti가 각각 풍부한 10$mu extrm{m}$ 이상과 0.1$\mu\textrm{m}$ 이하의 크기인 구형상의 영역으로 균일한 다상분리를 일으켰다. Nd$_2$O$_3$-Al$_2$O$_3$-SiO$_2$-TiO$_2$계에서 상분리는 내부 결정화와 관련하여 매우 중요한 인자로 확인되었다.

Keywords

References

  1. US Pat. 2,920,971 Method of Making Ceramics and Product Thereof S.D. Stookey
  2. Glass Chemistry (2nd Ed.) W. Vogel
  3. J. Non-cryst. Solids v.247 An Approach to New Glasses Through Phase Separation S. Inoue;A. Makishima;H. Inoue;K. Soga;T. Konishi;T. Asano
  4. 39th Symposium on Glass and Photonics materials v.11 Phase Separation and Optical Properties of B₂O₃ Glasses Containing Rare-earth Oxides K. Tomoya
  5. 39th Symposium on Glass and Photonics Materials Development of CaO-Fe₃O₄-SiO₂ Glasses Using Two Phases Separation A. Yasumori
  6. Phys Chem. of Glasses v.27 Crystallization of Na₂O-Al₂O₃-VaO-TiO₂-SiO₂ Glasses Containing Rare Earth Oxides E.R. Vance;P.J. Hayward;J.M. George
  7. J. Non. Cryst. Soilds. Surface Crystallisation of Rare-earth Aluminosilicate Glasses H.S. Kim;S. Bagadeshi;M.P. Brungs;C.C Sorrell
  8. Phys and Chem Glasses v.32 no.2 Formation and Properties of Rare Earth Aluminosilicate Glasses J.T. Kohli;J.E. Shelby
  9. J. Am. Ceram. Soc. v.73 no.1 Rare-earth Aluminosilicate Glasses J.E. Shelby;J.T. Kohli
  10. J. Ceram. Soc. Japan v.99 Phase Equilibria in the Al₂O₃-Y₂O₃-SiO₂ System and Phase Separation and Crystallisation Behaviour of Glasses Y. Murakami;H. Yamamoto
  11. J. Am. Ceram. Soc. v.73 no.9 Properties of Sm₂O₃-Al₂O₃-SiO Glasses for In Vivo Applications E. Erbe;D. Day
  12. Am. Mineral v.69 Structural Stuides of Silicate Glasses and Melts-applications and Limitations of Raman Spectroscopy P. McMillan
  13. Phys. Chem. Glasses. v.34 Raman and Infrared Spectra of Rare-earth Aluminposilicate Glasses J.T. Kohli;R.A. Condrate Snr;J.E. Shelby
  14. Proceedings of XVIII International Congress on Glass Raman-Spectroscopic Characterisation of Nucle Formation in TiO₂ Nucleated Lithium-Aluminosilicate Glass Ceramics R. Sprengard;U. Fotheringham;W. Pannhorst;K. Binder;M.K. Choudhary(ed.);N.T. Huff(ed.);C.H. Drummond(ed.)
  15. J. Non-Cryst. solids v.129 Phase Separation in Glasses N. Kreidl
  16. J. Non-Cryst. Solids v.123 Phase Separation of Glasses M. Tomozaw;V. McGahay;J.M. Hyde
  17. Glass Technology v.35 no.6 Properties of CaO-TiO₂-SiO₂ Glasses M.A. Villegas;A. de Pablos;J.M.F. Navarro
  18. Glass-Ceramics P.W. McMillan
  19. J. Non-Cryst. Solids v.112 Effect of Phase Separation on Nucleation and Growth of Magenesium Aluminium-Titanate Crystals in MgO-Al₂O₃-SiO₂-TiC Glass X. Zou;Y. Yamane;J. Li;C. Wang
  20. Ph.D. Thesis University of Maniz Raman-spectroscopy on Li₂O-Al₂O₃-SiC Glass-Ceramics R.Sprengard
  21. J. Non-Cryst. Solids. v.159 Phase Separation in rare earth-doped SiO₂ Glasses V. McGahay;M. Tomozawa
  22. Phase Separation in Glass O.V. Mazurin(ed.);E.A. Porai-Koshit(ed.)