کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10624378 | 989589 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of Si contents on the microstructure, mechanical and tribological properties of Cr-Si-N coatings
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Cr-Si-N coatings with different Si contents were deposited by a hybrid coating system, where the Cr target was used for the arc ion plating (AIP) and the Si target for the middle frequency (MF) magnetron sputtering. The XRD, cross-sectional SEM and XPS results indicated that the Cr-Si-N coating exhibited a nanocomposite structure containing CrN nanocrystallines and amorphous Si3N4 phase. Furthermore, the TEM results showed that all the CrN nano-crystals were embedded in an amorphous matrix of a-Si3N4. The thickness of the Cr-Si-N coatings was in the range of 2.1-2.4 μm while the Si content was in the range of 2.2-11.1 at%. The hardness of Cr-Si-N coatings first increased and then decreased with the increase of Si content and the highest value was approximately 2490 Hv at 6.94 at% Si content. For coatings with different Si content, the average friction coefficient was maintained around 0.35-0.45. The highest hardness of Cr-Si-N coatings with Si content of 6.94 at% can be attributed to limited dislocation activity in nano-crystals and suppression of grain boundary sliding.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 42, Issue 4, March 2016, Pages 5062-5067
Journal: Ceramics International - Volume 42, Issue 4, March 2016, Pages 5062-5067
نویسندگان
Lingling Huang, Changwei Zou, Wei Xie, Feng Peng, Lexi Shao,