Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis and Crystal Structure Characterization of Ga2O3 Powder by Precipitation and Polymerized Complex Methods

침전법과 착체중합법을 이용한 Ga2O3 분말의 합성 및 결정구조 분석

  • Jung, Jong-Yeol (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Sang-Hun (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Kang, Eun-Tae (School of Nano and Advanced Materials Engineering, Gyeongsang National University) ;
  • Han, Kyu-Sung (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Jin-Ho (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Hwang, Kwang-Teak (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Cho, Woo-Seok (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
  • 정종열 (한국세라믹기술원 이천분원) ;
  • 김상훈 (한국세라믹기술원 이천분원) ;
  • 강은태 (국립경상대학교 공과대학 재료공학부 재료공학과) ;
  • 한규성 (한국세라믹기술원 이천분원) ;
  • 김진호 (한국세라믹기술원 이천분원) ;
  • 황광택 (한국세라믹기술원 이천분원) ;
  • 조우석 (한국세라믹기술원 이천분원)
  • Received : 2014.01.28
  • Accepted : 2014.04.17
  • Published : 2014.05.31
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Abstract

Gallium oxide ($Ga_2O_3$) powders were synthesized using a precipitation method and a polymerized complex method. TG-DSC, SEM, and XRD were performed to investigate the phase and morphology of the $Ga_2O_3$. In situ high-temperature XRD analysis revealed the crystal structure of $Ga_2O_3$ at different temperatures. The $Ga_2O_3$ obtained using the precipitation method and polymerized complex method were generally spherical-shaped particles and their average particle size was approximately 80 nm and $1{\mu}m$, respectively. The crystal structure of the $Ga_2O_3$ prepared by the precipitation method was changed from rhombohedral to monoclinic at $700^{\circ}C$, while monoclinic $Ga_2O_3$ was obtained directly from the precursor by the polymerized complex method.

Keywords

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