Toughening mechanisms in V-Si-N coatings
文献类型：期刊论文
| 作者 | Ge, F. F.; Sen, H. S.; Daghbouj, N.; Callisti, M.; Feng, Y. J.; Li, B. S.; Zhu, P.; Li, P.; Meng, F. P.; Polcar, T. |
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2021 |
| 卷号 | 209 |
| 关键词 | FRACTURE-TOUGHNESS SPINODAL DECOMPOSITION DEFORMATION MECHANISMS DEPENDENT DEFORMATION METAL NITRIDES CRACK-GROWTH HARD FILMS MICROSTRUCTURE TRANSITION |
| 英文摘要 | Microstructural evolution and deformation mechanisms of magnetron sputtered V-Si-N coatings with various Si contents are investigated by transmission electron microscopy, X-ray absorption spectroscopy, and ab initio calculations. A small amount of Si atoms was dissolved into the cubic VN lattice, locally reducing the neighboring V-N p-d hybridization near the Si site. The Si content was found to impact the architecture of coating significantly. With increasing Si content, the microstructure evolved through three different architectures: (i) highly textured columnar grains, (ii) refined columnar grains, and (iii) nanocomposite structures where elongated grains were bounded by vein-like boundaries. Enhanced damage tolerance was observed in the nanocomposite structure, where multiple toughening mechanisms become active. Ab initio calculations revealed that the incorporation of Si monolayer in the (111) -oriented VN resulted in the formation of weaker Si-N bonds compared to V-N bonds, which allowed a selective response to strain and shear deformations by assisting the activation of the slip systems. (c) 2021 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/). |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21346]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | 1.Sen, HS 2.Daghbouj, N (corresponding author), Czech Tech Univ, Fac Elect Engn, Dept Control Engn, Tech 2, Prague 16000 6, Czech Republic. 3.Huang, F (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Engn Lab Adv Energy Mat, Ningbo 315201, Zhejiang, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Ge, F. F.,Sen, H. S.,Daghbouj, N.,et al. Toughening mechanisms in V-Si-N coatings[J]. MATERIALS & DESIGN,2021,209. |
| APA | Ge, F. F..,Sen, H. S..,Daghbouj, N..,Callisti, M..,Feng, Y. J..,...&Huang, F..(2021).Toughening mechanisms in V-Si-N coatings.MATERIALS & DESIGN,209. |
| MLA | Ge, F. F.,et al."Toughening mechanisms in V-Si-N coatings".MATERIALS & DESIGN 209(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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