Development of titanium carbonitride multilayer coatings deposited by physical vapour deposition (PVD) in industrial reactors for dental prosthesis application that mimic the rose colour of gums

Author

Pérez González-Anguiano, Felip

Abstract

Advanced coatings play an important role in a wide range of industrial applications. These coatings are commonly used in machining tools due to their high hardness and wear resistance, but also can be applied in jewelry and decorative purposes. The aim of this project is the synthesis of titanium carbonitride coatings deposited in Physical Vapour deposition (PVD) reactors by adjusting titanium/carbon target powers with the aim of mimic rose colour of gums for esthetic purposes. Focused on dental implantology applications such as dental prosthesis.
Films were characterized by X-ray diffraction, Raman spectroscopy, adherence with the substrate (Daimler-Benz Rockwell-C adhesion test), Calo test for the analysis of the coating thickness with an optical microscope, scanning electron microscopy (SEM) and colorimetric analysis. In this study, the colour variations of titanium carbonitride TiCxN1-x is function of the carbon and titanium composition that depends on the evaporation of target powers. Decorative properties were evaluated using colorimetry.
The TiCN coating process restricts the dimensions and the arrangement of the load. Thus, the reproducibility of a specified composition depends on the load geometry.

Director

Colominas Guàrdia, Carles

Degree

IQS SE - Master’s Degree in Materials Science and Engineering

Date

2022-04-08