Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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High Temperature Grain Growth Behavior of Aerosol Deposited BaTiO3 Film on (100), (110) Oriented SrTiO3 Single Crystal

상온분사분말공정에 의해 SrTiO3 (100), (110) Seed에 코팅된 BaTiO3의 고온 성장 거동 분석

  • Lim, Ji-Ho (Department of Materials Science and Engineering, Inha University) ;
  • Lee, Seung Hee (Department of Materials Science and Engineering, Inha University) ;
  • Kim, Ki Hyun (Department of Materials Science and Engineering, Inha University) ;
  • Ji, Sung-Yub (Department of Materials Science and Engineering, Inha University) ;
  • Jung, Suengwoon (Department of Materials Science and Engineering, Inha University) ;
  • Park, Chun-kil (Department of Materials Science and Engineering, Inha University) ;
  • Jung, Han-Bo (Department of Materials Science and Engineering, Inha University) ;
  • Jeong, Dae-Yong (Department of Materials Science and Engineering, Inha University)
  • 임지호 (인하대학교 신소재공학과) ;
  • 이승희 (인하대학교 신소재공학과) ;
  • 김기현 (인하대학교 신소재공학과) ;
  • 지성엽 (인하대학교 신소재공학과) ;
  • 정승운 (인하대학교 신소재공학과) ;
  • 박춘길 (인하대학교 신소재공학과) ;
  • 정한보 (인하대학교 신소재공학과) ;
  • 정대용 (인하대학교 신소재공학과)
  • Received : 2019.09.03
  • Accepted : 2019.10.11
  • Published : 2019.11.27
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Abstract

Single crystals, which have complexed composition, are fabricated by solid state grain growth. However, it is hard to achieve stable properties in a single crystal due to trapped pores. Aerosol deposition (AD) is suitable for fabrication of single crystals with stable properties because this process can make a high density coating layer. Because of their unique features (nano sized grains, stress inner site), it is hard to fabricate single crystals, and so studies of grain growth behavior of AD film are essential. In this study, a $BaTiO_3$ coating layer with ${\sim}9{\mu}m$ thickness is fabricated using an aerosol deposition method on (100) and (110) cut $SrTiO_3$ single crystal substrates, which are adopted as seeds for grain growth. Each specimen is heat-treated at various conditions (900, 1,100, and $1,300^{\circ}C$ for 5 h). $BaTiO_3$ layer shows different growth behavior and X-ray diffraction depending on cutting direction of $SrTiO_3$ seed. Rectangular pillars at $SrTiO_3$ (100) and laminating thin plates at $SrTiO_3$ (110), respectively, are observed.

Keywords

References

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