Abstract
In this work 3 mol.% yttria-stabilized zirconia (Y-TZP) disks were pressed and subsequently coated, aiming at producing reliable protective coatings to avoid Low Temperature Degradation (LTD) of Y-TZP. Suspensions of 12Ce-TZP or 5Y-PSZ (5 mol.% yttria stabilized zirconia) powders with different solid contents were used as coatings. Accelerated aging was conducted for times of 2, 6 and 18 hours at 134 °C. Specimens were analyzed using XRD, SEM and Colorimetry. Suspensions with solid content of 23 wt% prepared with 12 mol% ceria stabilized zirconia showed coarsening porosity, while all other suspensions achieved acceptable results for this property. Suspensions with 28 wt% Ce-TZP and 23 wt% Y-PSZ were the selected conditions for the LTD studies. They were selected among the remaining conditions, based on their enhanced color properties and surface density, displaying layers with ∼7 μm and 5-10 μm, respectively. Coatings enhanced resistance to LTD.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
