저온에서의 indium hydroxide에서 indium oxide로의 상전이
Phase transition of indium hydroxide to indium oxide at low temperatures
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Indium hydroxide 분말이 침전법으로 제조되었다. 반응온도(150~250 o C)와 각 반응온도에서의 유지시간(1~72 h) 이 실험 변수로 사용되었다. 각각의 제조된 분말을 X-선 회절 분석기(XRD)와 투과전자현미경(FE-TEM), BET를 통해 입자 크기, 미세구조 및 결정상을 관찰하였다. 본 연구에서는 침전법에 의해 제조된 Indium hydroxide가 열처리 시 반응온도와 각 반응온도에서의 유지시간에 따라 어떻게 Indium oxide로 상전이 거동을 하는 지를 고찰하였다.
Abstract
Indium hydroxide powder was prepared by precipitation method. The reaction temperature (150~250 o C) and the holding time at each reaction temperature (1~72 h) were used as experimental variables. The particle size, microstructure and crystal phase of each prepared powder were observed through X-ray diffraction (XRD), Transmission electron microscope (FE-TEM) and BET. In this study, we investigated the phase and microstructural change induced by heat treatment of indium hydroxide nanoparticles at various temperatures for different holding times.
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