کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9809888 | 1517718 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Composition and structure of thin electrodeposited zinc-nickel coatings
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The initial stages of Zn-Ni electrodeposition have been investigated through a study of composition and structure of thin deposits on copper and iron substrates. Compositional gradients through the 0.05 μm thick deposits formed at 10 and 60 mA cmâ2 have been obtained using Glow Discharge Optical Emission Spectrometry (GDOES) and Scanning Transmission Electron Microscopy (STEM). The results obtained by GDOES show the influence of the substrate material on composition of the deposits, which may also be inferred from the STEM results. Glancing angle X-ray diffraction (GAXRD) patterns confirm the formation of a complex γ phase structure in all the nickel-zinc deposits even though at the coating/substrate interface in the coating deposited on mild steel at 10 mA cmâ2 the nickel content approached 60 wt.% and therefore one would expect α Zn-Ni phase to be formed. The formation of γ phase rather than the α phase was discussed in terms of substrate effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 192, Issues 2â3, 21 March 2005, Pages 269-277
Journal: Surface and Coatings Technology - Volume 192, Issues 2â3, 21 March 2005, Pages 269-277
نویسندگان
C.E. Lehmberg, D.B. Lewis, G.W. Marshall,