“…C 1s peak can be fitted to three peaks, which are 282.1, 284.4 and 286.4 eV, respectively, which corresponds to C–Cr bond, C–C bond and C–N bond [10,2125]. The N 1s peak of CrAlTiCN coating can be fitted to four peaks at 396.5, 397.3, 398.2 and 399.3 eV, which correspond to CrN, TiN, AlN and N–C bond [21,26,27]. Figure 2 X-ray photoelectron spectroscopy of the prepared CrAlTiCN coatings (a) Cr2p, (b) Al2p, (c) Ti2p, (d) C1s, (e) N1s.…”
The CrAlTiCN coatings have been prepared by multi-arc ion plating technology on 316L and TC4 substrates, respectively. The microstructure of the prepared CrAlTiCN coatings has been characterised by X-ray diffraction, scanning electron microscopy and energy disperse spectroscopy, respectively. The mechanical properties, electrochemical corrosion behaviour and tribological performance of the prepared coatings were tested by microhardness tester, scratch tester, electrochemical workstation, and friction and wear tester, respectively. Results show that all the coatings includes many nanocrystalline and presents compact structure, weak columnar crystal structure and refine grain. The prepared coating on TC4 titanium alloy substrate presents a better tribological performance than that on 316L stainless steel substrate.
“…C 1s peak can be fitted to three peaks, which are 282.1, 284.4 and 286.4 eV, respectively, which corresponds to C–Cr bond, C–C bond and C–N bond [10,2125]. The N 1s peak of CrAlTiCN coating can be fitted to four peaks at 396.5, 397.3, 398.2 and 399.3 eV, which correspond to CrN, TiN, AlN and N–C bond [21,26,27]. Figure 2 X-ray photoelectron spectroscopy of the prepared CrAlTiCN coatings (a) Cr2p, (b) Al2p, (c) Ti2p, (d) C1s, (e) N1s.…”
The CrAlTiCN coatings have been prepared by multi-arc ion plating technology on 316L and TC4 substrates, respectively. The microstructure of the prepared CrAlTiCN coatings has been characterised by X-ray diffraction, scanning electron microscopy and energy disperse spectroscopy, respectively. The mechanical properties, electrochemical corrosion behaviour and tribological performance of the prepared coatings were tested by microhardness tester, scratch tester, electrochemical workstation, and friction and wear tester, respectively. Results show that all the coatings includes many nanocrystalline and presents compact structure, weak columnar crystal structure and refine grain. The prepared coating on TC4 titanium alloy substrate presents a better tribological performance than that on 316L stainless steel substrate.
“…The content difference between Al and Ti elements can be attributed to the difference of sputtering yield between Al atom with a light quality and Ti atom. Additionally, Al atoms are easily oozing to the films surface regions, which also could led the detected Al contents are slightly higher than the actual values in the films inner [16].…”
Acquiring the optimum growth conditions of Ti-Al-N films, the effects of gas atmosphere, especially the reactive plasma on the material microstructures, and mechanical properties are still a fundamental and important issue. In this study, Ti-Al-N films are reactively deposited by radio frequency inductively coupled plasma ion source (RF-ICPIS) enhanced sputtering system. Different nitrogen gas flow rates in letting into the ion source are adopted to obtain nitrogen plasma densities and alter deposition atmosphere. It is found the nitrogen element contents in the films are quite influenced by the nitrogen plasma density, and the maximum value can reach as high as 67.8% at high gas flow circumstance. XRD spectra and FESEM images indicate that low plasma density is benefit for the film crystallization and dense microstructure. Moreover, the mechanical properties like hardness and tribological performance are mutually enhanced by adjusting the nitrogen atmosphere.
“…The O b1 recorded at about 529.3 AE 0.3 eV is originated from the CeO 2 , [30][31][32] and the O b2 located at 529.9 AE 0.3 eV can be attributed to oxygen species corresponding to the Fe 2 O 3 ; [33][34][35][36] while the O b3 at about 531 eV can be assigned to the Al-O bonds of Al 2 O 3 . [37][38][39][40][41][42] Additionally, the sequence of the relative amount of O a is ranked by Fe-Ce-Al-P > Fe-Ce-Al-I > Fe-Ce-Al-M catalyst. As the most active catalyst, the Fe-Ce-Al-P catalyst is provided with the highest content of surface adsorbed oxygen with the lowest binding energy, implying the improved oxygen mobility, which is benecial to promote SCR performance.…”
Fe–Ce–Al catalysts were synthesized by the co-precipitation method (labeled as Fe–Ce–Al–P), co-impregnation method (Fe–Ce–Al–I), and direct mixing method (Fe–Ce–Al–M), respectively, and used for effective removal of NO.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
