Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Effects of Nucleating Agent on Crystallization of $\textrm{BaO}-\textrm{B}_{2}\textrm{O}_{3}-\textrm{Fe}_{2}\textrm{O}_{3}$ Glass

$\textrm{BaO}-\textrm{B}_{2}\textrm{O}_{3}-\textrm{Fe}_{2}\textrm{O}_{3}$계 유리에서 핵형성제가 결정화에 미치는 영향

  • Kim, Seon-Il (Dept. of MaterialsScience & Engineering Donkook University) ;
  • Gang, Won-Ho (Dept. of MaterialsScience & Engineering Donkook University)
  • Published : 1997.06.01
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Abstract

본연구는 45 BaO-20B$_{2}$O$_{3}$-35Fe$_{2}$o$_{3}$(wt%)의 조성의 유리에 핵형성제로서 TiO$_{2}$또는 ZrO$_{2}$를 첨가한 조성에서는 barium ferrite(BaFe$_{12}$O$_{19}$)가 결정화되었다. TiO$_{2}$를 9wt%첨가한 조성에 대하여 활성화에너지와 진동수는 각각 235.45kJ/mol, 진동수 6.89x$10^{17}$S$^{-1}$이었으며, Avrami지수는 1$\leq$n $\leq$로서 일방향의 결정성장으로 나타났다. 또한, ZrO$_{2}$9wt% 첨가 조성에서는, 활성화에너지와 진동수는 각각 173.86kJ/mol, 2.65x$10^{14}$S$^{-1}$이었으며, Avrami지수는 2$\leq$n$\leq$3로서 이방향의 결정성장을 나타내었다.내었다.

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References

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