Oxidation behavior of Si- rich Mo-Si-B coating doped with La by spark plasma sintering
Source abstract
Abstract
Abstract In this study, Mo-60Si-5B coating doped with 0.5 at% La was deposited on Nb-Si based alloy by spark plasma sintering and the oxidation resistance of the coating at 1300 ℃ was investigated. The results show that the mass gains of 0.5La-Mo-60Si-5B and Mo-60Si-5B coatings are 0.85 mg/cm−2 and 1.02 mg/cm−2 after oxidation at 1300 ℃ for 100 h, respectively. Good oxidation resistance of the coating is attributed to the formation of the glass phases La2SiO5 and SiO2 with low oxygen permeability, as well as the inhibition of oxygen diffusion due to the segregation of La2O3 at the grain boundary.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · Advanced ceramic materials synthesis · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Mo-Si-B alloys for ultrahigh-temperature structural applications10.1002/adma.201200764 ↗
2. Mo-Si-B alloys: developing a revolutionary turbine-engine material10.1557/mrs2003.191 ↗
3. Oxidation response of three Nb-Cr-Mo-Si-B alloys inair10.1016/j.corsci.2015.06.026 ↗
4. Y and Al modified silicide coatings on an Nb-Ti-Si based ultrahigh temperature alloy prepared by pack cementation process10.1016/j.surfcoat.2011.07.056 ↗
5. Characterization of microstructure and oxidation resistance of Y and Ge modified silicide coating on Nb-Si based alloy10.1016/j.corsci.2016.04.026 ↗
6. Effect of Al content on the structure and oxidation resistance of Y and Al modified silicide coatings prepared on Nb-Ti-Si based alloy10.1016/j.corsci.2013.01.010 ↗
7. Effect of filler on the oxidation protective ability of MoSi2 coating for Mo substrate by halide activated pack cementation10.1016/j.matdes.2015.12.079 ↗
8. High temperature environmental resistant Mo-Si-B based coatings10.1016/j.ijrmhm.2017.11.033 ↗
9. Multicomponent coating for enhanced oxidation resistance of tungsten10.1016/j.surfcoat.2012.08.011 ↗
10. Co-deposition of Si and B to form oxidation-resistant coatings on an Nb-Ti-Si based ultrahigh temperature alloy by pack cementation technique10.1016/j.corsci.2015.01.013 ↗
11. Microstructure and oxidation behavior of Mo-Si-Al coating on Nb-based alloy10.1016/j.jallcom.2017.11.339 ↗
12. An ultra-high temperature Mo-Si-B based coating for oxidation protection of NbSS/Nb5Si3 composites10.1016/j.apsusc.2015.02.061 ↗
13. Microstructural evolution and oxidation behaviour of Mo-Si-B coatings on an Nb-16Si-22Ti-7Cr-2Al-2Hf alloy at 1250 °C prepared by spark plasma sintering10.1016/j.surfcoat.2018.08.027 ↗
14. Effect of the ZrB2 content on the oxygen blocking ability of ZrB2-SiC coating at 1973K10.1016/j.jeurceramsoc.2020.10.036 ↗
15. Oxidation inhibition behaviors of the HfB2-SiC-TaSi2 coating for carbon structural materials at 1700 °C10.1016/j.corsci.2020.108982 ↗
16. Microstructure and oxidation resistance of a plasma sprayed Mo-Si-B multiphase alloy coating10.1016/S0966-9795(03)00069-4 ↗
17. FeAl and Mo-Si-B intermetallic coatings prepared by thermal spraying10.1016/j.intermet.2004.04.034 ↗
18. Synthesis of protective Mo-Si-B coatings in molten salts and their oxidation behavior in an air-water mixture10.1016/j.surfcoat.2006.01.003 ↗
19. Comparative investigation of structure, mechanical properties, and oxidation resistance of Mo-Si-B and Mo-Al-Si-B coatings10.1016/j.corsci.2017.04.023 ↗
20. Microstructure evolution and oxidation behavior of B modified MoSi2 coating on Nb-Si based alloys10.1016/j.corsci.2015.12.003 ↗
21. Microstructure and oxidation resistance of Mo-Si-B coating on Nb based in situ composites10.1016/j.corsci.2014.07.006 ↗
22. Microstructural and micro-mechanical properties of Mo-Si-B alloyed with Y and La10.1016/j.msea.2013.02.053 ↗
23. Mechanisms of oxide scale formation on yttrium-alloyed Mo-Si-B containing fine-grained microstructure10.1016/j.corsci.2014.09.017 ↗
24. Characterization of microstructure and oxidation resistance of Y and Ge modified silicide coating on Nb-Si based alloy10.1016/j.corsci.2016.04.026 ↗
25. Molybdenum alloys for high temperature applications in air10.1179/174329008X313379 ↗
26. High temperature oxidation of mechanically alloyed Mo-Si-B alloys10.1179/174327809X419122 ↗
27. The effect of mechanical alloying on microstructure and mechanical properties of MoSi2 prepared by spark plasma sintering10.1016/j.jallcom.2014.01.041 ↗
28. Microwave sintering of MoSi2-Mo5Si3 to promote a final nanometer-scale microstructure and suppressing of pesting phenomenon10.1016/j.matchar.2012.03.014 ↗
29. Synthesis and high temperature oxidation of Mo-Si-B-O pseudo in situ composites10.1016/S1468-6996(02)00015-3 ↗
30. Deposition of a B-modified silicide coating for Nb-Si based alloy oxidation protection10.1016/j.corsci.2016.06.020 ↗
31. Oxygen tracer diffusion in vitreous silica10.1111/j.1151-2916.1991.tb07318.x ↗
32. Comparison of microstructure and oxidation behavior of La-Mo-Si coatings deposited by two approaches10.1016/j.ceramint.2017.05.114 ↗
33. Oxidation mechanisms of lanthanum-alloyed Mo-Si-B10.1016/j.corsci.2014.07.058 ↗
34. Microstructural evolution and interdiffusion behavior of Mo-Si-B coating on Nb-Si based alloy10.1016/j.intermet.2018.02.003 ↗