“…Nevertheless, the surface roughness of VN films soaked by liquid nitrogen is all lower than that of VN film without soaking (0.860 μm), which agrees with the result of Jiang et al [21] that the surface roughness of fluorocarbon thin film decreases after DCT. The decrease of surface roughness will also influence the tribological properties of films, especially the frictional performance to a certain degree [28,29]. The results of the scratch test for VN films with different soaking time, including acoustic signals, penetration depth curves and scratch tracks, are shown in Figure 5.…”
Section: Resultsmentioning
confidence: 99%
“…Nevertheless, the surface roughness of VN films soaked by liquid nitrogen is all lower than that of VN film without soaking (0.860 μm), which agrees with the result of Jiang et al [21] that the surface roughness of fluorocarbon thin film decreases after DCT. The decrease of surface roughness will also influence the tribological properties of films, especially the frictional performance to a certain degree [28,29]. Figure 3 SEM micrographs of the surface of VN films by DCT with different soaking time: (a) without soaking, (b) soaking-10 h, (c) soaking-20 h, (d) soaking-30 h, (e) soaking-40 h and (f) soaking-50 h. Figure 4 Surface roughness of VN films by DCT with different soaking time: (a) without soaking, (b) soaking-10 h, (c) soaking-20 h, (d) soaking-30 h, (e) soaking-40 h and (f) soaking-50 h.…”
Deep cryogenic treatment is an effective method to improve materials' properties and has shown a considerable industries application prospect. In this work, deep cryogenic treatment with liquid nitrogen had been applied to deal with multi-arc ion-plated VN film. The results show that after deep cryogenic treatment, the scratch-resistance and wear-resistance of VN film are improved greatly, but the improvement in properties as well as surface roughness evolution is not proportional to the soaking time. The VN film with a soaking time of 20 h has the best mechanical properties, and the VN film with a soaking time of 40 h has the finest scratch-resistance, while the VN film with a soaking time of 30 h has the lowest surface roughness and wear rate. However, the wear mechanisms of these VN films with different soaking time are all adhesive wear and oxidative wear.
“…Nevertheless, the surface roughness of VN films soaked by liquid nitrogen is all lower than that of VN film without soaking (0.860 μm), which agrees with the result of Jiang et al [21] that the surface roughness of fluorocarbon thin film decreases after DCT. The decrease of surface roughness will also influence the tribological properties of films, especially the frictional performance to a certain degree [28,29]. The results of the scratch test for VN films with different soaking time, including acoustic signals, penetration depth curves and scratch tracks, are shown in Figure 5.…”
Section: Resultsmentioning
confidence: 99%
“…Nevertheless, the surface roughness of VN films soaked by liquid nitrogen is all lower than that of VN film without soaking (0.860 μm), which agrees with the result of Jiang et al [21] that the surface roughness of fluorocarbon thin film decreases after DCT. The decrease of surface roughness will also influence the tribological properties of films, especially the frictional performance to a certain degree [28,29]. Figure 3 SEM micrographs of the surface of VN films by DCT with different soaking time: (a) without soaking, (b) soaking-10 h, (c) soaking-20 h, (d) soaking-30 h, (e) soaking-40 h and (f) soaking-50 h. Figure 4 Surface roughness of VN films by DCT with different soaking time: (a) without soaking, (b) soaking-10 h, (c) soaking-20 h, (d) soaking-30 h, (e) soaking-40 h and (f) soaking-50 h.…”
Deep cryogenic treatment is an effective method to improve materials' properties and has shown a considerable industries application prospect. In this work, deep cryogenic treatment with liquid nitrogen had been applied to deal with multi-arc ion-plated VN film. The results show that after deep cryogenic treatment, the scratch-resistance and wear-resistance of VN film are improved greatly, but the improvement in properties as well as surface roughness evolution is not proportional to the soaking time. The VN film with a soaking time of 20 h has the best mechanical properties, and the VN film with a soaking time of 40 h has the finest scratch-resistance, while the VN film with a soaking time of 30 h has the lowest surface roughness and wear rate. However, the wear mechanisms of these VN films with different soaking time are all adhesive wear and oxidative wear.
“…This framework demonstrated the first virtual yellow initially down marker amid a live NFL diversion. A variety of this virtual first-down marker is presently a standard in all broadcast football matchups today and is a significant piece of the AVR history [4,5]. In 1999, NASA utilised a half breed engineered vision framework that coordinated augmented reality in their X-38 rocket.…”
mentioning
confidence: 99%
“…Through this product, one could catch certifiable activities and consolidate it with the communications of virtual items. Using a camera and the Internet, clients experience this AVR [5].…”
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