Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Crystalline Growth Behavior of SrAl2O4Synthesized by the Polymerized Complex Method

착체중합법으로 함성한 SrAl2O4의 결정 성장 거동 관찰

  • Published : 2004.04.01
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Abstract

SrA1$_2$O$_4$was prepared by polymerized complex method and crystalline growth was investigated. Precursors was annealed at temperatures form 900 to 100$0^{\circ}C$, for different time(between 0 and 10 h), and that was determined by Transmittance Electron Microscopy (TEM) and X-Ray Diffractometer (XRD). Crystalline size was calculated by Scherrer's equation and its variation was studied. It increased rapidly in the primary stage and then slowly as a function of square root of time. so, It was grown to 32, 45 and 59nm after heating treatment at 900, 980, and 100$0^{\circ}C$ for 10 h respectively. Cstalline growth rates were 4.5, 9.6, and 18.6 nm/h$^{1}$2/ as a addition of heating temperature.

SrA1$_2$O$_4$를 착체중합법으로 합성하는 과정에 있어서 결정의 성장 거동을 연구하였다. 전구체를 900∼100$0^{\circ}C$의 온도범위에서 0∼10시간동안 열처리하였으며, XRD와 TEM을 이용하여 분석하였다 Scherrer's equation을 이용하여 결정자의 크기를 측정하였으며, 그 변화양상을 관찰하였다. 결정자의 크기는 초기 급격한 증가이후 시간의 제곱근에 따라 증가하였으며, 900, 980,그리고 100$0^{\circ}C$의 온도에서 10시간 열처리 이후에 32, 45, 그리고 59nm로 성장하였다. 결정성장속도는 열처리 온도가 증가함에 따라 4.5, 9.4, 그리고 18.6nm/h$^{1}$2/이였다.

Keywords

References

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