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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
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- 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제16권 제4호
- 발행연도
- 2015.8
- 수록면
- 438 - 444 (7page)
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Nanoparticles of the tetragonal alumina-stabilized zirconia were synthesized from zirconium salt of ZrOCl2 ? 8H2O and approximately 23 wt % alumina stabilizer with ammonia as a base catalyst and sucrose as a gelling agent at a room temperature. In the preparation process of nanoparticles of alumina-stabilized zirconia, the calcination was conducted at temperatures of 500-800 ℃. The calcined powder was analyzed and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM) studies. The tetragonal phase of ZrO2 started to crystallize at a low temperature of 500 ℃. Further phase transformation of the alumina-stabilized zirconia maintained the tetragonal ZrO2 at 600 ℃. Besides, the addition of sucrose by weight ratio of 1 : 6 to the total weight precursors produced nanoparticles of alumina-stabilized zirconia less than 20 nm in size at that temperature. The tetragonal phase of ZrO2 was stable and no transition alumina was identified at 800 ℃. It is suggested that alumina is in solid solution in the tetragonal zirconia polymorph at that temperature. The typical SEM images show high agglomeration of ultrafine microstructures of alumina-stabilized zirconia nanoparticles at that temperature. The results indicate that the method represents an effective methodology for the preparation of alumina-stabilized zirconia nanoparticles at a lower temperature than 800 ℃.
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참고문헌 (43)
참고문헌 신청
O. Vasylkiv / 2003 / J. Am. Ceram. Soc 86(2):299~304
K.C. Patil / 2008 / Chemistry of Nanocrystalline Oxide Materials, Combustion Synthesis, Properties and Applications / World Scientific
N.Q. Minh / 1993 / J Am. Ceram. Soc 76(3):563~588
C. J. Mogab / 1972 / the Review of Scientific Instruments 43(11):1605~1610
F. M. L. Figueiredo / 2013 / Electrolytes for solid oxide fuel cells / Wiley Interdisciplinary Reviews: Energy and Environment 2(1):52~72
K.C. Patil / 2008 / Chemistry of Nanocrystalline Oxide Materials, Combustion Synthesis, Properties and Applications / World Scientific
N.Q. Minh / 1993 / J Am. Ceram. Soc 76(3):563~588
C. J. Mogab / 1972 / the Review of Scientific Instruments 43(11):1605~1610
F. M. L. Figueiredo / 2013 / Electrolytes for solid oxide fuel cells / Wiley Interdisciplinary Reviews: Energy and Environment 2(1):52~72
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