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مواد و طراحی
جزئیات رویداد
اینستاگرام تی پی بین
همایش ، رویداد ، ژورنال
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  • nanoindentation study of magnetron-sputtered crn and crsin coatings

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 524
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     crn and crsin coatings were deposited on stainless steel substrate by reactive magnetron sputtering. the coatings were characterized for phases, chemical composition, microstructure, and mechanical properties by x-ray diffraction (xrd), field emission scanning electron microscopy (fesem)/energy dispersive spectroscopy (eds), atomic force microscopy (afm), and nanoindentation technique, respectively. the cubic phase was the only phase observed in both the coatings as observed in xrd results. a dense morphology was observed in these coatings deposited with high nitrogen and si contents, 50:50 and 18.65 at.%, respectively. nanoindentation measurement of crn coatings, with ar + n2 proportions of 60:40, showed maximum hardness (h) and modulus (e) of 21 ± 0.85 gpa and 276 ± 13 gpa, respectively. the crn coatings deposited in pure n2 atmosphere showed h and e values of 27 ± 1.62 and 241 ± 10 gpa, respectively. the measured h and e values of crsin coatings were found to be 28 ± 1.40 gpa and 246 ± 10 gpa, respectively. the improved hardness in both the coatings was attributed mainly to a reduction in crystallite size, decrease in surface roughness, and dense morphology. the incorporation of si into the crn coatings has improved both hardness and young’s modulus.

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