Toughness measurement and toughening mechanisms of arc ion plating Cr2O3 films treated by annealing

He, Ning; Li, Hongxuan; Li, Ji; Liu, Xiaohong; Zhou, Hang; Chen, Jianmin

doi:10.1016/j.ceramint.2015.04.012

Cited by 9 publications

(2 citation statements)

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“…1,2 However, the inherent low fracture toughness of ceramic films generally causes the formation of cracks during the friction process, thereby limiting its engineering applications. 3 The toughness of materials is defined as its ability to absorb the energy during deformation until fracture occurs. 4 Thus, much research has been conducted on toughening ceramic films by several approaches, including composition or structure grading, and application of multilayer structure, carbon nanotubes, and compressive stress.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and tribological properties of Cr/Cr₂O₃ multilayer films

Wang

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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Cr/Cr 2 O 3 multilayer and single-layer films were deposited through multiple arc ion plating technique. The influence of modulation ratio on the mechanical and tribological properties was also investigated. Results show that the multilayer design of Cr/Cr 2 O 3 films could improve the toughness of films, but a certain degree of hardness loss is also observed. The hardness and adherence strength are improved with the increase of Cr 2 O 3 layer thickness. Furthermore, alternating layers of ductile soft metals and hard ceramics could suppress the propagation of microcracks and brittle fracture. However, the decrease of modulation ratio could causes a decline in the mechanical properties. The film with appropriate modulation ratio (Cr 2 O 3 :Cr ratio 10:1) exhibits better comprehensive properties than other films, this film also exhibits an excellent wear resistance with a high load of 10 N. Consequently, the wear life is improved from 6 m of the single-layer Cr 2 O 3 film to 835 m of the multilayer film.

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Section: Introductionmentioning

confidence: 99%

Mechanical and tribological properties of Cr/Cr₂O₃ multilayer films

Wang

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…With the relatively low friction coefficient, high temperature resistance, stable chemical properties and so on, it has been used as a protection material for microelectronic components, and it also has become a barrier material. The Cr 2 O 3 films can also be used in bearings as well as in the combustion cylinder; in addition, such as hard disks and the appearance of digital magnetic recording media need to use this material [6][7][8][9]. As the Cr 2 O 3 films have stable chemical properties, good resistance to environmental corrosion, and have good optical performance, they are also used in fire prevention tools and optical instruments [10,11].…”

Section: Introductionmentioning

confidence: 99%

In-Situ Heat Treatment Study on the Nanocrystalline Cr2O3 Film Using an Environmental Scanning Electron Microscope

et al. 2017

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Abstract:In this work, the surface morphology changes of nanocrystalline Cr 2 O 3 film deposited on Si wafer during the heating process were observed in-situ by means of an environmental scanning electron microscope (ESEM). The Cr 2 O 3 film cracked at high temperature due to the cause of thermal stress; the corresponding crack area percentages on the film surface were real-time evaluated using image analysis software (SISC IAS V8.0) based on the principle of gray value analysis. In the meantime, the effects of the heating temperature on the crack area percentage, phase constituents, and grain size of the Cr 2 O 3 film were also studied in detail. The results showed that the percentage of crack area on film surface first increased with the heating temperature rise, and reached the maximum value at around 980 • C, and then gradually declined again. The above trend is closely related to the changes of thermal stress and grain growth in film. In addition, the heat treatment also had a strong influence on the grain size of the Cr 2 O 3 film.

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Role of annealing temperatures on the evolution of microstructure and properties of Cr2O3 films

Liu

et al. 2015

Applied Surface Science

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Toughness measurement and toughening mechanisms of arc ion plating Cr2O3 films treated by annealing

Cited by 9 publications

References 30 publications

Mechanical and tribological properties of Cr/Cr₂O₃ multilayer films

Mechanical and tribological properties of Cr/Cr₂O₃ multilayer films

In-Situ Heat Treatment Study on the Nanocrystalline Cr2O3 Film Using an Environmental Scanning Electron Microscope

Role of annealing temperatures on the evolution of microstructure and properties of Cr2O3 films

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Toughness measurement and toughening mechanisms of arc ion plating Cr2O3 films treated by annealing

Cited by 9 publications

References 30 publications

Mechanical and tribological properties of Cr/Cr2O3 multilayer films

Mechanical and tribological properties of Cr/Cr2O3 multilayer films

In-Situ Heat Treatment Study on the Nanocrystalline Cr2O3 Film Using an Environmental Scanning Electron Microscope

Role of annealing temperatures on the evolution of microstructure and properties of Cr2O3 films

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Mechanical and tribological properties of Cr/Cr₂O₃ multilayer films

Mechanical and tribological properties of Cr/Cr₂O₃ multilayer films