Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Spinel Single Crystal Growth by Verneuil Process

Verneuil법에 의한 Spinel 단결정 성장

  • 유영기 (한양대학교 무기재료공학과) ;
  • 최익서 (한양대학교 무기재료공학과) ;
  • 오근호 (한양대학교 무기재료공학과)
  • Published : 1990.02.01
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Abstract

Al-rich Mg-Al spinel single crystals were grown by Verneuil process using oxygen and hydrogen flame. Spinel single crystals were grown in chemical compositions from MgO : Al2O3 mole ratio 1 : 1 to 1 : 3. Mole ratio 1 : 1 was hard to be grown and mole ratio 1 : 2.5 and 1 : 3 were grown well. Selecting well-grown mole ratio 1 : 3, seeds were prepared having [100], [110] and [111] orientation respectively. Growth rate were highest in [100] orientation and lowest in [111] orientation.

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References

  1. Synthetic Gems Production Techiques L.H. Yaverbaum
  2. Growth of Crystals v.2 Translated from Russian A.V. Shubnikov(ed);N.N. Sheftal(ed).
  3. Gems made by Man Kurt Nassau
  4. J. Appl. Phys. v.43 Growth of Nearly Stoichiometric MgAl₂O₄ Spinel Single Crystals by a Gradient Furnace Techniques D. Viechnicki;F. Schmid;J.W. McCauley
  5. Gemstones G.F. Herbert Smith
  6. Man-Made Gemstones D. Etwell
  7. Crystal Growth Theory and Techniques C.H.L. Goodman
  8. J. Cryatal Growth v.29 Growth of Mg-Al Spinel Crystals of Large Diameter Using a Modified Fusion Techniques R. Falckenberg
  9. Growth of Crystals(Vol. 9) N.N. Sheftal;E.I. Givargizov;J.E.S. Bradley(tr.)