Effect of TiO 2 addition on the microstructure and nanomechanical properties of Al 2 O 3 Suspension Plasma Sprayed coatings
Source abstract
Abstract
Alumina-titania coatings are widely used in industry for wear, abrasion or corrosion protection components. Such layers are commonly deposited by atmospheric plasma spraying (APS) using powder as feedstock. In this study, both Al2O3 and Al2O3-13 wt% TiO2 coatings were deposited on austenitic stainless steel coupons by suspension plasma spraying (SPS). Two commercial suspensions of nanosized Al2O3 and TiO2 particles were used as starting materials. The coatings microstructure and phase composition were fully characterised using FEG-SEM and XRD techniques. Nanoindentation technique was used to determine the coatings hardness and elastic modulus properties. Results have shown that the addition of titania to alumina SPS coatings causes different crystalline phases and a higher powder melting rate is reached. The higher melted material achieved, when titania is added leads to higher hardness and elastic modulus when the same spraying parameters are used. (C) 2014 Elsevier B.V. All rights reserved.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Advanced materials and composites · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
Show source-provided references
1. Nanostructured materials: basic concepts and microstructure10.1016/S1359-6454(99)00285-2 ↗
2. Size matters: why nanomaterials are different10.1039/b502142c ↗
3. Nanostructured materials: mind over matter10.1016/0965-9773(93)90058-J ↗
4. Nanostructured thermoelectrics: the new paradigm?10.1021/cm902195j ↗
5. Recent progress of one-dimensional ZnO nanostructured solar cells10.1016/j.nanoen.2011.10.005 ↗
6. Abrasion resistance of nanostructured and conventional cemented carbides10.1016/S0043-1648(96)07277-8 ↗
7. Nanocrystalline materials and coatings10.1016/j.mser.2004.07.001 ↗
8. Application opportunities for nanostructured materials and coatings10.1016/0921-5093(95)09969-7 ↗
9. Nanocoatings for engine application10.1016/j.surfcoat.2004.05.006 ↗
10. Davis · 2004
11. Plasma processing of nanomaterials for functional applications–a review10.1166/nnl.2012.1324 ↗
12. Engineering a new class of thermal spray nano–based microstructures from agglomerated nanostructured particles, suspensions and solutions: an invited review10.1088/0022-3727/44/9/093001 ↗
13. Engineering nanostructured thermal spray coatings: process–property–performance relationships of ceramic based materials10.1179/174367607X202591 ↗
14. Preparation and spray drying of Al2O3–TiO2 nanoparticle suspensions to obtain nanostructured coatings by APS10.1016/j.surfcoat.2010.06.002 ↗
15. Development and implementation of plasma sprayed nanostructured ceramic coatings
16. Mechanical properties of conventional and nanostructured plasma sprayed alumina coatings10.1016/j.mechmat.2012.05.006 ↗
17. Nanostructured alumina coatings manufactured by air plasma spraying: correlation of properties with the raw powder microstructure10.1016/j.jallcom.2009.10.055 ↗
18. Microstructure of plasma-sprayed titania coatings deposited from spray-dried powder10.1016/S0257-8972(03)00223-8 ↗
19. Development of photocatalytic active TiO2 surfaces by thermal spraying of nanopowders10.1155/2008/384171 ↗
20. Influences of laser remelting on microstructure of nanostructured Al2O3–13wt.% TiO2 coatings fabricated by plasma spraying10.1016/j.apsusc.2008.11.082 ↗
21. Structure and tribological performance of nanostructured ZrO2-3mol% Y2O3 coatings deposited by air plasma spraying10.1007/s11666-010-9551-7 ↗
22. Nanostructured YSZ thermal barrier coatings engineered to counteract sintering effects10.1016/j.msea.2007.07.082 ↗
23. The study on porosity and thermophysical properties of nanostructured La2Zr2O7 coatings10.1016/j.apsusc.2011.05.069 ↗
24. Suspension and solution thermal spray coatings10.1016/j.surfcoat.2009.03.005 ↗
25. Suspension plasma spraying: process characteristics and applications10.1007/s11666-009-9451-x ↗
26. Comparison of freeze drying and spray drying to obtain porous nanostructured granules from nanosized suspensions10.1016/j.jeurceramsoc.2011.11.034 ↗
27. Preparation of high solids content nano–titania suspensions to obtain spray–dried nanostructured powders for atmospheric plasma spraying10.1016/j.jeurceramsoc.2011.08.007 ↗
28. Permeability and microstructure of suspension plasma-sprayed YSZ electrolytes for SOFCs on various substrates10.1007/s11666-012-9829-z ↗
29. Residual stresses in suspension plasma sprayed electrolytes in metal-supported SOFC half cells10.1016/j.jpowsour.2012.08.045 ↗
30. Deposition and characteristics of submicrometer–structured thermal barrier coatings by suspension plasma spraying10.1007/s11666-012-9762-1 ↗
31. Thermal diffusivity and conductivity of yttria stabilized zirconia coatings obtained by suspension plasma spraying10.1016/j.surfcoat.2012.08.014 ↗
32. Plasma spraying of efficient photoactive TiO2 coatings10.1016/j.surfcoat.2012.08.042 ↗
33. Suspension plasma sprayed TiO2 coatings using different injectors and their photocatalytic properties10.1016/j.surfcoat.2010.04.068 ↗
34. Suspension plasma spraying of nanostructured WC–12Co coatings10.1361/105996306X147072 ↗
35. Microstructure of suspension plasma sprayed multilayer coatings of hydroxyapatite and titanium oxide10.1016/j.surfcoat.2007.02.013 ↗
36. Heimann · 2008
37. Microstructural transformations of TiO2, Al2O3+13TiO2 and Al2O3+40TiO2 at plasma spraying and laser engraving10.1016/j.surfcoat.2004.01.010 ↗
38. Effects of TiO2 on the mechanical properties of the Al2O3–TiO2 plasma sprayed coating10.1016/j.jeurceramsoc.2006.04.099 ↗
39. Influence of long-term aqueous exposure on surface properties of plasma sprayed oxides Al2O3, TiO2 and their mixture Al2O3–13TiO210.1016/j.apsusc.2008.05.312 ↗
40. High temperature tribological behavior of nanostructured and conventional plasma sprayed alumina–titania coatings10.1016/j.vacuum.2012.01.008 ↗
41. Wear behavior of alumina-titania coatings: analysis of process and parameters10.1016/j.ceramint.2004.11.014 ↗
42. Effect on microstructure of TiO2 rate in Al2O3–TiO2 composite coating produced using plasma spray method
43. Microstructure of alumina–3wt.% titania coatings by plasma spraying with nanostructured powders10.1016/S0921-5093(03)00164-3 ↗
44. Fabrication and evaluation of plasma sprayed nanostructured alumina–titania coatings with superior properties10.1016/S0921-5093(00)01382-4 ↗
45. Architecture and phases composition of suspension plasma sprayed alumina–titania sub–micrometer–sized coatings10.1016/j.matlet.2011.09.096 ↗
46. Study of colloidal behaviour and rheology of Al2O3–TiO2 nanosuspensions to obtain free–flowing spray–dried granules for atmospheric plasma spraying10.1016/j.ceramint.2013.03.083 ↗
47. On the formation of thermally sprayed alumina coatings10.1007/BF00550387 ↗
48. Plasma spray coatings in different nanosize alumina10.1016/S0167-577X(02)00818-2 ↗
49. A scanning electron microscopic study to observe the changes in the growth morphology of the α phased Alumina–13wt.% titania coatings during plasma spraying10.1016/j.surfcoat.2008.03.039 ↗
50. Hardness and Young's modulus distributions in atmospheric plasma sprayed WC–Co coatings using nanoindentation10.1016/j.surfcoat.2011.03.012 ↗
51. Indentation properties of plasma sprayed Al2O3–13% TiO2 nanocoatings10.1016/j.actamat.2009.03.020 ↗
52. Microstructure and photocatalytic activity of suspension plasma sprayed TiO2 coatings on steel and glass substrates10.1016/j.surfcoat.2011.07.039 ↗