- 양극산화 TiO2 피막의 화학 결합상태와 미세구조
- ㆍ 저자명
- 장재명,오한준,이종호,주은균,지충수,Jang. J.M.,Oh. H.J.,Lee. J.H.,Joo. J.H.,Chi. C.S.
- ㆍ 간행물명
- 한국재료학회지
- ㆍ 권/호정보
- 2002년|12권 7호|pp.528-532 (5 pages)
- ㆍ 발행정보
- 한국재료학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Anodic $TiO_2$film on Ti substrate was fabricated at 180V in sulfuric acid solutions containing phosphoric acid and hydrogen peroxide. Effects of the anodizing conditions on the morphology of the oxide layers, and chemical states of the component elements of the layers were studied primarily using SEM, XRD, AFM, and XPS. The pores in the oxide layer was not uniform in size, shape, and growth direction particularly near the interface between the substrate and the oxide layer, compared with those of the surface layer. The formation of irregular type of pores seemed to be attributed to spark discharge phenomena which heavily occurred during increasing the anodic voltage. The pore diameter and the cell size increased, and the number of cells per unit area decreased with the increasing time. From the XPS results, it was shown that component elements of the electrolytes, P and S, existed in the chemical states of $PO_4^{-3}$ , $P_2$$O_{5}$, $SO_4^{-2}$ , $SO_3^{-2}$ , P, S, etc., which were penetrated from the electrolytes into the oxide layer during anodization.