Articles
  • Structural evolution of indium hydroxide powders prepared by a precipitation method
  • Won-Jun Leea,b, Eun-Kyoung Choia,c, Kyu-Sung Hana , Jin-Ho Kima , Ung-Soo Kima , Kwang-Taek Hwanga , Kwang-Bo Shimc , Hae-Jin Hwangb andWoo-Seok Choa,*
  • a Icheon Branch, Korea Institute of Ceramic Engineering & Technology, Icheon 17303, Korea b School of Material Science and Engineering, Inha University, Incheon 22212, Korea c Department of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea
Abstract
In this study, we investigated the phase and microstructural changes induced by heat-treatment of indium hydroxide nanoparticles produced by precipitation at various temperatures for different holding times. A white powder was obtained after heating for various times at temperatures of 150-900 oC. We also investigated changes in the specific surface area of indium oxide prepared by heating the precipitate between 200 and 900 oC. Finally, we propose a model for the formation of indium oxide powder from the precipitate. The model includes processes such as the formation of bundles of rod-shaped particles, generation of voids in the bundle from the evaporation of crystallized water, strong re-agglomeration of rod-shaped particles, collapse of the rod structure, formation of spherical agglomerates, heterogeneous crystal growth, and homogeneous crystal growth.

Keywords: Indium hydroxide, Precipitation method, Transparent conductive oxide, Heat-treatment, Raw material.

This Article

  • 2018; 19(3): 272-278

    Published on Jun 30, 2018

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