Thermal Stability of CrWN Glass Molding Coatings after Vacuum Annealing
Source abstract
Abstract
CrWN glass molding coatings were deposited by plasma enhanced magnetron sputtering (PEMS). The microstructure and thermal stability of these coatings were investigated by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscope, transmission electron microscope, atomic force microscope and nanoindentation tests. The as-deposited coating exhibited an aggravated lattice expansion resulting in a constant hardness enhancement. The vacuum annealing induced surface coarsening and the spinodal decomposition of the coating accompanied by the formation of nm-sized c-CrN, c-W2N, and h-WN domains. The annealed coating with low W content had mainly a face-centered cubic (f.c.c) matrix, strain fields caused by lattice mismatch caused hardness enhancement. Following an increase in W content, the annealed coating showed a mixed face-centered cubic (f.c.c) and hexagonal close-packed (h.c.p) matrix. The large volume fraction of h-WN phases seriously weakened the coating strengthening effect and caused an obvious drop in hardness.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Metal and Thin Film Mechanics · Diamond and Carbon-based Materials Research · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Liaoning Key Laboratory of Complex Workpiece Surface Special Machining, University of Science and Technology Liaoning, Anshan 114051, China
Shenzhen Key Laboratory of Advanced Manufacturing Technology for Mold and Die, Shenzhen University, Shenzhen 518060, China
Southwest Technology and Engineering Research Institute, Chongqing 400039, China
Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116000, China
Funding
National Natural Science Foundation of China
References (39)
Show source-provided references
1. Design and simulation of a superposition compound eye system based on hybrid diffractive-refractive lenses10.1364/AO.56.007442 ↗
2. Three-dimensional shape measurement using a structured light system with dual projectors10.1364/AO.57.003983 ↗
3. Review of small aspheric glass lens molding technologies10.1007/s11465-017-0417-2 ↗
4. Research on single point diamond turning of chalcogenide glass aspheric lens10.1016/j.procir.2018.05.023 ↗
5. Quantitatively measurement and analysis of residual stresses in molded aspherical glass lenses10.1007/s00170-014-6058-2 ↗
6. Precision compression molding of glass microlenses and microlens arrays—An experimental study10.1364/AO.44.006115 ↗
7. A high volume precision compression molding process of glass diffractive optics by use of a micromachined fused silica wafer mold and low Tg optical glass10.1088/0960-1317/16/10/012 ↗
8. Investigations on glass-to-mold sticking in the hot forming process10.1016/j.jnoncrysol.2007.02.095 ↗
9. Investigation of the effects of process parameters on the glass-to-mold sticking force during precision glass molding10.1016/j.surfcoat.2010.06.049 ↗
10. Adhesive interlayers’ effect on the entire structure strength of glass molding tools’ Pt-Ir coatings by nano-tests determined10.1016/j.surfcoat.2011.07.060 ↗
11. Anti-sticking Re-Ir coating for glass molding process10.1016/j.tsf.2015.01.002 ↗
12. Mechanical properties of Pt-Ir and Ni-Ir binary alloys for glass-molding dies coating10.1166/jnn.2011.3502 ↗
13. Development of a ta-C diamond-like carbon (DLC) coating by magnetron sputtering for use in precision glass molding10.1002/mawe.201300171 ↗
14. Influence of high temperature annealing on the structure, hardness and tribological properties of diamond-like carbon and TiAlSiCN nanocomposite coatings10.1016/j.apsusc.2011.09.072 ↗
15. Preparation and annealing study of CrTaN coatings on WC-Co10.1016/j.surfcoat.2011.06.012 ↗
16. Characterization of Ta-Si-N coatings prepared using direct current magnetron co-sputtering10.1016/j.apsusc.2014.04.011 ↗
17. Mechanical properties and oxidation resistance of reactively sputtered Ta1-xZrxNy thin films10.1016/j.surfcoat.2015.08.051 ↗
18. Oxidation resistance and mechanical properties of Cr-Ta-Si-N coatings in glass molding processes10.1016/j.surfcoat.2014.08.085 ↗
19. Investigation on the structural and mechanical properties of anti-sticking sputtered tungsten chromium nitride films10.1016/j.tsf.2012.09.036 ↗
20. Chemical inertness of Cr-W-N coatings in glass molding10.1016/j.tsf.2015.09.044 ↗
21. Effect of the filament discharge current on the microstructure and performance of plasma-enhanced magnetron sputtered TiN coatings10.1016/j.jallcom.2017.05.037 ↗
22. Comparison in mechanical and tribological properties of Cr-W-N and Cr-Mo-N multilayer films deposited by DC reactive magnetron sputtering10.1016/j.surfcoat.2007.09.006 ↗
23. Processing of chromium tungsten nitride hard coatings for glass molding10.1016/j.surfcoat.2006.01.064 ↗
24. Sputter deposited chromium nitride based ternary compounds for hard coatings10.1016/S0040-6090(98)00992-4 ↗
25. Micrograph and structure of CrN films prepared by plasma immersion ion implantation and deposition using HPPMS plasma source10.1016/j.surfcoat.2012.04.012 ↗
26. XPS investigations of chromium nitride thin films10.1016/j.surfcoat.2005.02.091 ↗
27. X-ray photoelectron spectroscopy study on the CrN surface grown on sapphire substrate to control the polarity of ZnO by plasma-assisted molecular beam epitaxy10.1016/j.apsusc.2009.06.034 ↗
28. Thermal stability of tungsten sub-nitride thin film prepared by reactive magnetron sputtering10.1016/j.jnucmat.2016.12.009 ↗
29. Reactive sputter deposition of tungsten nitride thin films10.1116/1.1498278 ↗
30. Characterization of sputtered tungsten nitride flm and its application to Cu electroless plating10.1016/j.mee.2007.07.017 ↗
31. LEEIXS and XPS studies of reactive unbalanced magnetron sputtered chromium oxynitride thin films with air10.1016/j.elspec.2003.10.004 ↗
32. Preparation of WOx-TiO2 and the Photocatalytic Activity under Visible Irradiation10.4028/www.scientific.net/KEM.336-338.1979 ↗
33. Degradation of CrN films at high temperature under controlled atmosphere
34. Temperature dependence of copper diffusion in different thickness amorphous tungsten/tungsten nitride layer10.1134/S0031918X17100027 ↗
35. High temperature oxidation resistance of multicomponent Cr-Ti-Al-Si-N coatings10.1016/j.surfcoat.2009.04.009 ↗
36. Enhanced hardness and age-hardening of TiAlN coatings through Ru-addition10.1016/j.scriptamat.2018.11.051 ↗
37. Mechanical properties, thermal stability and oxidation resistance of Ta-doped CrAlN coatings10.1016/j.surfcoat.2019.04.026 ↗
38. The influence of age-hardening on turning and milling performance of Ti-Al-N coated inserts10.1016/j.surfcoat.2008.05.036 ↗
39. Self-organized nanostructures in the Ti-Al-N system10.1063/1.1608464 ↗