Protective properties of SiO2 with SiO2 and Al2O3 nanoparticles sol-gel coatings deposited on FeCrAl alloys
Source abstract
Abstract
Five layer SiO2 coatings containing SiO2 or Al2O3 nanopowders were deposited on FeCrAl alloy support by sol-gel method. Studies of protective properties of the coatings were carried out during high temperature cyclic oxidation. Changes in surface topography, structure and chemical composition of the surface layer of FeCrAl alloy were investigated. It has been shown that the type of nanofillers present in the SiO2 coating (about 2.5 wt%) affects morphology of Al2O3 growing scale and determines the heat resistance of FeCrAl alloy. The lowest relative mass change (approx. 1.3%) after 10 oxidation cycles in air at 900 °C (one cycle = 12 h) was measured for the samples with coatings containing hydrophilic nanosilica (Aerosil 380) as filler. The protective efficiency of the coatings in the process of high-temperature oxidation is from 66% to 85%. The thickness of the formed scale and the value of the parabolic rate constant depend on the type of nanopowder in the coating.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Thermal and Kinetic Analysis · Material Properties and Applications · High-Temperature Coating Behaviors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Effects of minor additions and impurities on oxidation behavior of FeCrAl alloys. Development of novel surface coatings compositions10.1002/maco.200503915 ↗
2. Effect of yttrium as alloying element on a model alumina-forming alloy oxidation at 1100 °C10.1007/s11085-017-9750-4 ↗
3. Early stages of the oxidation of a FeCrAlRE alloy (Kanthal AF) at 900 °C: a detailed microstructural investigation10.1016/j.corsci.2008.05.019 ↗
4. Abnormal high growth rates of metastable aluminas on FeCrAl alloys10.1007/s11085-005-5715-0 ↗
5. Parameters affecting transient oxide formation on FeCrAl based foil and fibre materials10.1179/mht.2003.034 ↗
6. A life prediction model for the chemical failure of FECRAlRE alloys: preliminary assessment of model extension to lower temperatures10.1179/mht.2003.050 ↗
7. Air oxidation of commercial FeCrAlRE alloy foils between 800 and 950 °C10.1179/174328405X46123 ↗
8. Thermal expansion coefficient of alumina films developed by oxidation of a FeCrAl alloy determined by a deflection technique10.1016/j.apsusc.2005.08.116 ↗
9. Residual stresses in alumina scales grown on different types of Fe–Cr–Al alloys: effect of specimen geometry and cooling rate10.1016/S0921-5093(04)00887-1 ↗
10. Effect of a ZrO2 coating deposited by the sol-gel method on the resistance of FeCrAl alloy in high-temperature oxidation conditions10.1016/j.matchemphys.2013.02.060 ↗
11. A fundamental aspect of the growth process of alumina scale on a metal with dispersion of CeO2 nanoparticles10.1016/j.corsci.2011.02.014 ↗
12. High-temperature oxidation resistance of FeCrAl alloys coated with silica-rich ceramic SiO2-Al2O3 deposited by sol-gel method10.1016/j.matchemphys.2010.10.046 ↗
13. High temperature oxidation resistance of FeCrAl alloys covered with ceramic SiO2-Al2O3 coatings deposited by sol-gel method10.1016/j.corsci.2008.09.012 ↗
14. The effect of reactive elements on high temperature oxidation of FeCrAl alloy
15. High temperature oxidation resistance of FeCrAl alloy with deposited ceramic coatings containing reactive elements
16. Nanoprecipitation of oxide particles and related high strength in oxide-dispersion-strengthened iron-aluminium-chromium intermetallics10.1016/j.actamat.2013.04.034 ↗
17. The morphology of alumina scales formed on Fe-20Cr-4Al-S alloys with reactive element (Y, Hf) additions at 1273 K
18. Influence of nanometric ceria coating on oxidation behavior of chromium at 900 °C10.1016/S1002-0721(07)60046-5 ↗
19. Influence of reactive element oxide coatings on the high temperature oxidation behavior of alumina-forming alloys10.1023/B:OXID.0000025331.25452.35 ↗
20. High temperature creep and tensile properties of alumina formed on FeCralloy foils doped with yttrium10.1016/j.jeurceramsoc.2008.05.051 ↗
21. Effect of La and Hf additions on the high-temperature oxidation resistance of high-purity Fe–20Cr–5Al alloy foils10.1023/A:1004694719134 ↗
22. Rare earth application for heat-resisting alloys10.1016/S1002-0721(10)60371-7 ↗
23. Influence of ceria and yttria on the protective properties of SiO2–Al2O3 coatings deposited by sol–gel method on FeCrAl alloy10.1007/s10973-016-5556-x ↗
24. High-temperature oxidation of FeCrAl alloy with alumina-silica-ceria coatings deposited by sol–gel method10.1007/s10973-013-3014-6 ↗
25. Effect of mechanical alloying and consolidation process on microstructure and hardness of nanostructured Fe–Cr–Al ODS alloys10.1016/j.msea.2011.08.041 ↗
26. Effects of minor alloy additions and oxidation temperature on protective alumina scale formation in creep-resistant austenitic stainless steels10.1016/j.scriptamat.2007.08.032 ↗
27. Characterization of the alumina scale formed on coated and uncoated doped superalloys10.1016/j.surfcoat.2011.07.044 ↗
28. The effect of cerium oxide argon-annealed coatings on the high temperature oxidation of a FeCrAl alloy10.1016/j.apsusc.2009.07.069 ↗
29. Thermal behavior and dehydration kinetic study of SiO2/PEG hybrid gel glasses10.1002/pen.24561 ↗
30. Effect of nanosilica type on protective properties of composite ceramic coatings deposited on steel 316L by sol-gel technique10.1016/j.jnoncrysol.2007.08.056 ↗
31. Thermal behaviour of mixed alumina-silica gels obtained from alkoxides: phase formation and morphology of powders10.1016/j.jnoncrysol.2010.09.056 ↗
32. Oxidation of FeCrAl alloy: influence of temperature and atmosphere on scale growth rate and mechanism10.1016/S0257-8972(00)00989-0 ↗