Structure and polarization property of Zn-Nb films formed on steel sheet by sputtering

Hiroshi Kuboyama, Hiroaki Nakano, Satoshi Oue, Hisaaki Fukushima, Masataka Masuda, Shunichi Hashimoto

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Zn-Nb films were formed on the steel sheet by helicon plasma sputtering under argon gas atmosphere of 1.0 Pa, with RF power of 50 W and DC power of 50 mA to study the structure and the polarization property of the films using EPMA, X-ray diffraction and polarization curve measurement. Zn plate like crystals in Zn-Nb films were decreased with increasing Nb content, resulting in smooth surface all over the films at Nb content of 30mass% and above. The preferred orientation plane of Zn plate like crystals was (0002) at Omass% Nb, while the orientation indices of (101̄1) and (101̄0)Zn were increased with increasing Nb content. At 30-60 mass% Nb, the X-ray diffraction spectra showed halo pattern characteristic of anomalous structure. The corrosion current of Zn-Nb films, which was determined by polarization curves in 3% NaCl solution, decreased with increasing Nb content to reach the minimum value at 30-60 mass% Nb of anomalous structure.

    Original languageEnglish
    Pages (from-to)16-20
    Number of pages5
    JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
    Volume92
    Issue number1
    DOIs
    Publication statusPublished - Jan 2006

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics
    • Physical and Theoretical Chemistry
    • Metals and Alloys
    • Materials Chemistry

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