High-temperature behaviour of HVOF (Co,Ni)O coated Cu-Ni-Fe anodes
Source abstract
Abstract
Abstract Cu-Ni-Fe alloys are promising inert anodes for green Al production but their corrosion resistance must be improved. Here, protective (Co,Ni)O coatings are deposited by high velocity oxygen fuel (HVOF) process on Cu-Ni-Fe alloys. The influence of the coating and substrate compositions on their behavior is studied at 1000 °C under argon and air. On Cu-rich alloy, CoxNi1−xO coatings with higher nickel content slow down oxygen diffusion to the substrate, as well as copper diffusion to the sample surface. On Ni-rich alloy, the formation of a NiFe2O4 scale is observed, whose thickness decreases as the Ni content of the CoxNi1−xO coatings increases.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Semiconductor materials and devices · Metallurgical Processes and Thermodynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. Environmental impact analysis of primary aluminium production at country level10.1016/j.procir.2016.01.104 ↗
2. Carbon footprint of aluminum production
3. On the key role of Cu on the oxidation behavior of Cu–Ni–Fe based anodes for Al electrolysis10.1016/j.corsci.2015.09.006 ↗
4. Cold sprayed Cu–Ni–Fe anode for Al production10.1016/j.corsci.2014.10.021 ↗
5. Cold-sprayed Cu-Ni-Fe anodes for CO2-Free aluminum production10.1007/s11666-020-01002-z ↗
6. Study of Cu-Ni-Fe alloys as inert anodes for Al production in low-temperature KF-AlF3 electrolyte10.1007/s11663-019-01695-w ↗
7. De Nora oxygen evolving inert metallic anode, TMS light met
8. Study of NiO−CoO and Co 3 O 4 −Ni 3 O 4 solid solutions in multiphase Ni−Co−O systems10.1021/ie101249r ↗
9. Equilibrium relationships in the system NiO-CoO-O210.1007/BF00552924 ↗
10. Synthesis and thermal stability of (Co,Ni)O solid solutions10.1111/jace.16397 ↗
11. Fauchais · 2014
12. The oxidation behaviour of HVOF thermal-sprayed MCrAlY coatings10.1016/S0257-8972(97)00470-2 ↗
13. Suspension HVOF spraying of reduced temperature solid oxide fuel cell electrolytes10.1007/s11666-008-9249-2 ↗
14. Performance of thermally sprayed Si/mullite/BSAS environmental barrier coatings exposed to thermal cycling in water vapor environment10.1016/j.surfcoat.2012.11.043 ↗
15. Improved mechanical properties by nanoreinforced ceramic composite HVOF coatings10.4028/www.scientific.net/AST.45.1240 ↗
16. High-temperature performance of alumina-zirconia composite coatings containing amorphous phases10.1002/adfm.201100471 ↗
17. Elastic Modulus evolution and behavior of Si/Mullite/BSAS-Based environmental barrier coatings exposed to high temperature in water vapor environment10.1007/s11666-010-9599-4 ↗
18. Alternative to chromium: characteristics and wear behavior of HVOF coatings for gas turbine shafts repair (heavy-duty)10.1016/j.jmatprotec.2004.02.061 ↗
19. A comparison of the abrasive wear behaviour of HVOF sprayed titanium carbide- and titanium boride-based cermet coatings10.1016/S0043-1648(01)00702-5 ↗
20. Optimization and characterization of high velocity oxy-fuel sprayed coatings: techniques, materials, and applications10.3390/coatings1010017 ↗
21. Suspension plasma spray deposition of CoxNi1-xO coatings10.1016/j.surfcoat.2020.126168 ↗
22. Impact of a post-casting homogenization treatment on the high-temperature oxidation resistance of a Cu-Ni-Fe alloy10.1016/j.corsci.2018.11.037 ↗
23. Cation impurity diffusion in CoO and NiO10.1016/0022-3697(84)90140-9 ↗
24. Chase · 1985
25. Standard Gibbs free energy of formation for Cu2O, NiO, CoO, and FexO: high resolution electrochemical measurements using zirconia solid electrolytes from 900–1400 K10.1016/0016-7037(86)90027-X ↗
26. Bulk and surface phases of iron oxides in an oxygen and water atmosphere at low pressure10.1039/b009288f ↗
27. Oxidation behavior of pure copper in oxygen and/or water vapor at intermediate temperature10.2355/isijinternational.49.1926 ↗
28. High-temperature oxidation of Cu–30 wt.% Ni–15 wt.% Fe10.1016/S0010-938X(00)00080-9 ↗
29. Thermodynamic evaluation and modeling of the Fe–Co–O system10.1016/j.actamat.2003.09.034 ↗
30. Self- and interdiffusion in ternary Cu-Fe-Ni alloys10.4028/www.scientific.net/DDF.237-240.50 ↗
31. Thermodynamic and kinetic study of diffusion paths in the system Cu-Fe-Ni10.1007/BF02651877 ↗
32. Hiroaki Okamoto · 2016
33. Phase equilibria in the cobalt oxide-copper oxide system10.1361/1054971023604161 ↗
34. Oxidation and corrosion of highly alloyed Cu–Fe–Ni as inert anode material for aluminum electrowinning in as-cast and homogenized conditions10.1016/j.corsci.2012.06.013 ↗
35. The contribution of different types of point defects to diffusion in CoO and NiO during oxidation of the metals10.1007/BF00609658 ↗
36. Mechanically alloyed Cu-Ni-Fe-O based materials as oxygen-evolving anodes for aluminum electrolysis10.1149/2.028204jes ↗