Spinel Single Crystal Growth by Verneuil Process

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J. Korean Ceram. Soc. > Volume 27(2); 1990 > Article

Journal of the Korean Ceramic Society 1990;27(2): 155.

Verneuil법에 의한 Spinel 단결정 성장

유영기, 최익서, 오근호

한양대학교 무기재료공학과

Spinel Single Crystal Growth by Verneuil Process

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.