Synthesis and characterization of porous tungsten carbide with added tungsten silicides
Source abstract
Abstract
Abstract Porous materials made of commercial tungsten carbide (WC) with the addition of thermally obtained tungsten silicides (WSi2 and W5Si3) were made. The main research's contribution is firstly finding optimal conditions for synthesis tungsten silicides from elementary powders, and lately obtaining porous materials with excellent cavitation resistance. A phase transformation during synthesis of silicides was studied by changing temperature and time of heating. Obtained silicides were added to WC in different mass percentages. Mixtures were spark plasma sintered. Nanoindentation tests were performed on sintered samples, as well as cavitation erosion testing accompanied by measuring of mass changes and the profilometry measurements to scan the surface. Microstructure and morphology were determined by scanning electron microscopy (SEM), while porosity percentages based on SEM images were calculated by computer software QWin.
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References (34)
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1. Introduction to the chemistry of transition metal carbides and nitrides
2. Pierson · 1996
3. Kinetics and mechanism of the low-pressure, high-temperature oxidation of tungsten silicides-III10.1007/BF00603484 ↗
4. High-temperature silicon diffusivities in Mo5Si3 and W5Si3 phases10.4028/www.scientific.net/DDF.194-199.1557 ↗
5. Growth kinetics of W5Si3 layer in WSi2/W system10.1016/j.surfcoat.2004.02.039 ↗
6. Growth kinetics and oxidation behavior of WSi2 coating formed by chemical vapor deposition of Si on W substrate10.1016/j.jallcom.2005.11.002 ↗
7. Growth behavior and microstructure of oxide scales grown on WSi2 coating10.1016/j.intermet.2007.11.008 ↗
8. Microstructure and dry-sliding wear resistance of laser clad tungsten reinforced W5Si3/W2Ni3Si intermetallic coatings10.1016/j.apsusc.2004.03.218 ↗
9. Grain growth during sintering of tungsten carbide ceramics10.1016/j.ijrmhm.2014.01.001 ↗
10. Characterization and properties of tungsten carbide coatings fabricated by SPS technique10.1016/j.jnucmat.2012.10.020 ↗
11. Hot pressing of tungsten carbide with and without sintering additives10.1016/j.ijrmhm.2013.12.002 ↗
12. SPS, binderless WC powders, and the problem of sub carbide10.1016/S0026-0657(09)70039-6 ↗
13. Fabrication of tungsten-based composites by solid binder mixing and sintering10.1016/j.powtec.2015.06.014 ↗
14. Cobalt and nitrogen Co-doped tungsten carbide catalyst for oxygen reduction and hydrogen evolution reactions10.1016/j.electacta.2015.12.074 ↗
15. Characterization and comparison of grain boundary character distributions in cemented carbides with different binder phases10.1016/j.commatsci.2014.06.022 ↗
16. Suzuki · 1986
17. Platinum-like behavior of tungsten carbide in surface catalysis10.1126/science.181.4099.547 ↗
18. A facile soft-template synthesis of ordered mesoporous carbon/tungsten carbide composites with high surface area for methanol electrooxidation10.1016/j.jpowsour.2011.10.037 ↗
19. Tungsten monocarbide as potential replacement of platinum for methanol electrooxidation10.1021/jp075504z ↗
20. Tungsten carbide/carbon composite synthesized by combustion-carbothermal reduction method as electrocatalyst for hydrogen evolution reaction10.1016/j.ijhydene.2016.06.063 ↗
21. Tungsten carbide hollow microspheres as electrocatalyst and platinum support for hydrogen evolution reaction10.1016/j.ijhydene.2014.12.105 ↗
22. Tungsten carbide as electrocatalyst for the hydrogen evolution reaction in pH neutral electrolyte solutions10.1016/j.apcatb.2009.01.003 ↗
23. The effect of the method of preparation on the catalytic activity of tungsten carbide for hydrogen evolution10.1016/0378-7753(80)80107-8 ↗
24. The effect of method of preparation on the catalytic activity of tungsten carbide10.1016/0378-7753(79)80038-5 ↗
25. Preparation of hollow global tungsten carbide (WC) catalysts with meso-porosity and its characterization
26. Synthesis and characterization of three-dimensionally ordered macroporous (3DOM) tungsten carbide: application to direct methanol fuel cells10.1021/cm901855y ↗
27. Tungsten carbide microsphere as an electrode for cathodic hydrogen evolution from water10.1016/j.ijhydene.2008.05.045 ↗
28. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments10.1557/JMR.1992.1564 ↗
29. Measurement of hardness and elastic modulus by instrumented indentation advances in understanding and refinements to methodology10.1557/jmr.2004.19.1.3 ↗
30. Thermomechanical properties and cavitation resistance of a high-alumina low-cement castable10.1111/j.1744-7402.2010.02545.x ↗
31. Constituent phase nanoindentation of WC/Co and Ti(C,N) hard metals10.1016/0921-5093(95)10099-7 ↗
32. Nanoindentation study of WC–12Co hardmetals obtained from nanocrystalline powders: evaluation of hardness and modulus on individual phases10.1016/j.msea.2010.01.026 ↗
33. Nanoindentation of WC–Co hardmetals10.1016/j.jeurceramsoc.2012.12.018 ↗
34. Intrinsic hardness of constitutive phases in WC–Co composites: nanoindentation testing,statistic alanalysis, WC crystal orientation effects and flow stress for the constrained metallic binder10.1016/j.jeurceramsoc.2015.04.021 ↗