Effect of Deposition Conditions on Phase Content and Mechanical Properties of Yttria-Stabilized Zirconia Thin Films Deposited by Sol-Gel/Dip-Coating
Open Access
- 13 October 2021
- journal article
- research article
- Published by Hindawi Limited in Journal of Nanomaterials
- Vol. 2021, 1-9
- https://doi.org/10.1155/2021/4449890
Abstract
The effect of yttria concentration (0-33.4 mol%), extraction rates (0.17, 0.33, 0.50, and 0.67 mm s-1), and the number of layers (up to four) on the phase content, surface defects, thickness, hardness, adhesion strength, and wear rate of yttria-stabilized zirconia coatings produced by sol-gel/dip-coating were studied for its use on thermolabile substrates. At 700°C, a metastable tetragonal phase ( t ″ ) was obtained even with 33.4 mol% yttria when heat treated for 24 hours; however, a fully cubic structure was attained by extending the heat treatment up to 48 hours as confirmed by Raman spectroscopy. Furthermore, it was necessary to use withdrawal speeds of at least 0.67 mm s-1 to produce defect-free coatings. Although the coatings were produced at low temperature, they showed 41% lower wear rate than steel and an adhesion strength of 30 MPa. Our work stresses the importance of the heat treatment history on the stabilization of the cubic phase in sol-gel YSZ coatings.Keywords
Funding Information
- Consejo Nacional de Ciencia y Tecnología (245629)
This publication has 53 references indexed in Scilit:
- Mechanism of plastic deformation of a Ni-based superalloy for VHTR applicationsJournal of Nuclear Materials, 2013
- Elaboration and characterization of sol–gel derived ZrO2 thin films treated with hot waterApplied Surface Science, 2012
- Ability of cubic zirconia to accommodate radiation damageScripta Materialia, 2010
- Preparation and characterization of sol–gel derived yttria doped zirconia coatings on AISI 316LThin Solid Films, 2009
- Characterization of ceramic sol–gel coatings as an alternative chemical conversion treatment on commercial carbon steelElectrochimica Acta, 2009
- Synthesis of Yttria Stabilized Zirconia by sol–gel route: Influence of experimental parameters and large scale productionSolid State Sciences, 2006
- Preparation and characterization of doped sol–gel zirconia filmsCeramics International, 2002
- Radiation damage effects in zirconiaJournal of Nuclear Materials, 1999
- Influence of test temperature on post irradiation, high temperature tensile and creep properties of X8 CrNiMoNb 1616, X10 NiCrAlTi 32 20 (Alloy 800) and NiCr22Fe18Mo (Hastelloy X)Journal of Nuclear Materials, 1990
- Phase relationships in the zirconia-yttria systemJournal of Materials Science, 1975