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J. Korean Ceram. Soc. > Volume 48(6); 2011 > Article
Journal of the Korean Ceramic Society 2011;48(6): 625.
doi: https://doi.org/10.4191/kcers.2011.48.6.625
NaF 전해질 양극산화에 의한 마이크로콘 구조 니오븀 산화물 제조
정봉용, 정은혜1
한국세라믹기술원 미래융합세라믹본부
1인하대학교 화학공학과
Formation of Nb2O5 Microcone Structure in NaF Electrolyte by Anodization
Bong-Yong Jeong, Eun-Hye Jung1
Future Convergence Ceramic Division, Korea Institute of Ceramic Engineering and Technology
1Department of Chemical Engineering, Inha University
ABSTRACT
In this study, we show that by anodization of Nb in NaF electrolytes microcone niobium oxide layers can be formed under a range of experimental conditions. It is found that a single NaF electrolyte leads to the formation of microcones. At 1 M NaF, 40 V, 1 h, well-ordered microcones were generated on Nb discs. XRD results show that the initially formed anodic oxide is amorphous, but an amorphous to crystalline transition occurs during anodization. For the formation of favorable microcones, it is considered that proper parameters such as electrolyte concentration, voltage, anodizing time are necessary according to the kind of electrolytes.
Key words: Anodization, Niobium oxide, Microcone structure, NaF electrolyte
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