Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Estimation of Phase Ratio for TiO2 Powders by XRD and XAS

XRD와 XAS에 의한 TiO2 분말의 상분율 결정

  • Rha, Sa-Kyun (Department of Materials Science and Engineering, Hanbat National University) ;
  • Lee, Youn Seoung (Department of Information Communication Engineering, Hanbat National University)
  • 나사균 (한밭대학교 재료공학과) ;
  • 이연승 (한밭대학교 정보통신공학전공)
  • Received : 2012.08.21
  • Accepted : 2012.09.21
  • Published : 2012.09.30
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Abstract

The crystallinity and phase ratio of anatase to rutile in $TiO_2$ were estimated by x-ray diffraction (XRD) and x-ray absorption spectroscopy (XAS). Traditionally, the structural characterization of $TiO_2$ powders has been carried out by XRD techniques, which are comparatively easy in use and analysis. However, materials with amorphous phase, nano-sized or nano-structured crystallinities cannot be fully characterized by XRD because XRD analysis has a limit for abnormal contributions of the nano-crystal such as the surface contribution. From the comparison with the experimental and calculated Ti K-edge XAS spectra, we found the possibility of efficient estimation in the crystalinites and the phase ratio of anatase to rutile for nano-sized $TiO_2$ mixture.

Keywords

References

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