Scratch resistance analysis of coatings on glass and polycarbonate

• Published in: Thin solid films Vol. 517; no. 10; pp. 3121 - 3125
• Main Authors: Boentoro, W., Pflug, A., Szyszka, B.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 31.03.2009; Elsevier
• Subjects: Coating, Glass; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Finite element; Fundamental areas of phenomenology (including applications); Mechanical and acoustical properties; Optical coatings; Optical elements, devices, and systems; Optics; Physical properties of thin films, nonelectronic; Physics; Polycarbonate; Scratch test; Structure and morphology; thickness; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Thin film structure and morphology; Coating, Glass; Polycarbonate; Scratch test; Finite element; Scratching test; Digital simulation; Glass; Mechanical properties; Antimony; Antimony additions; Mechanical stability; Layer thickness; Antimony oxide; Thin films; Finite element method; Tin additions; Silicon oxides; Polycarbonates; Tin oxide; Glass; Polycarbonate; Scratch test; Finite element; Coating; Optical coatings
• ISSN: 0040-6090; 1879-2731
• DOI: 10.1016/j.tsf.2008.11.119

Optical coatings are nowadays broadly used in automotive and architectural glazings, displays, etc. When applied to the outside of laminated glass panels or on single glass sheets the coatings are subject to abrasive processes like cleaning and dusty or sandy circumstances. A high mechanical stability is therefore required under various environmental loads in life cycle. In this work, scratch tests have been carried out for antimony doped tin oxide film (SnO 2:Sb) on glass and silicon oxide film (SiO 2) on polycarbonate to analyze the impact of film thickness on the scratch resistance. In addition to that, the taber test is used for the analysis of SiO 2 on polycarbonate. Simulations of the experimental set-up based on a finite element model are developed in order to investigate the elasto-plastic behaviour of the coating and substrate.