کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8027628 | 1517624 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of sonication on anticorrosive and mechanical properties of electrodeposited Ni-Zn-TiO2 nanocomposite coatings
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of sonication on anticorrosive and mechanical properties of electrodeposited Ni-Zn-TiO2 nanocomposite coatings Effects of sonication on anticorrosive and mechanical properties of electrodeposited Ni-Zn-TiO2 nanocomposite coatings](/preview/png/8027628.png)
چکیده انگلیسی
Ni-Zn-TiO2 nanocomposite coating was fabricated using the electrodeposition process with the aid of ultrasonic vibration (0, 108, 135, 162 and 216 W cmâ 2 ultrasonic power densities) on mild steel disks. The properties of the nanocomposite film were investigated using scanning electron microscopy (SEM), energy dispersive X-ray (EDX), EDX-mapping, Vickers microhardness test, Tafel polarization test and electrochemical impedance spectroscopy (EIS). The results revealed a significant improvement of anticorrosive properties and hardness of the nanocomposite coatings compared to Ni-Zn alloy coating. Ecorr became more positive and changed from â 0.921 V for Ni-Zn alloy coating to â 0.789 V for Ni-Zn-TiO2 nanocomposite coating. Icorr decreased from 1.25 Ã 10â 5 A cmâ 2 for Ni-Zn alloy coating to 3.46 Ã 10â 6 A cmâ 2 for Ni-Zn-TiO2 nanocomposite coating. On the other hand, hardness increased from 253 HV for Ni-Zn alloy coating to 876 HV for Ni-Zn-TiO2 nanocomposite coating. The improvements were related not just to the content of nano-TiO2 in the coatings but also to surface homogeneity and nanoparticles uniform dispersion in the matrix of the coating.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 254, 15 September 2014, Pages 358-363
Journal: Surface and Coatings Technology - Volume 254, 15 September 2014, Pages 358-363
نویسندگان
Alireza Katamipour, Mansour Farzam, Iman Danaee,