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- 고활성 ITO (Indium-Tin Oxide) 나노 분말을 침전법으로 합성시의 공정 변수 및 존재하는 이온의 영향
- 이인규, 노봉현
- Effect of Process Variables and exisisting Ions on Highly Active Nano-sized ITO Powders Prepared by Precipitation Method
- In-Gyu Lee, Bong-Hyun Noh
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Journal of Korean Powder Metallurgy Institute 2008;15(6):450-457
DOI: https://doi.org/10.4150/KPMI.2008.15.6.450
2한국항공대학교 항공재료공학과
1Department of Materials Engineering, Korea Aerospace University
2Department of Materials Engineering, Korea Aerospace University
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Abstract
The objectives of this study were the development of a synthesis technique for highly active nanosized ITO powder and the understanding of the reaction mechanisms of the ITO precursors. The precipitation and agglomeration phenomena in ITO and In_2O_3 precursors are very sensitive to reaction temperature, pH, and coexisting ion species. Excessive Cl- ion and Sn+4 ions had a negative effect an synthesizing highly active powders. However, with a relevant stabilizing treatment the shape and size of ITO and In_2O_3 precursors could be controlled and high density sintered products of ITO were obtained. By applying the reprecipitation process (or stabilization technique), highly active ITO and In_2O_3 powders were synthesized. Sintering these powders at 1500°C for 5 hours produced 97% dense ITO bodies.
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