Accepted Manuscript: for final journal publication see https://doi.org/10.1016/j.tsf.2018.11.028 1 Simultaneous chemical vapor deposition and thermal strengthening 2 of glass 3 4 Peter Sundberg1, Lina Grund Bäck1, Robin Orman2, Jonathan Booth2, Stefan Karlsson1* 5 1RISE Research Institutes of Sweden, Built Environment Division, Glass Section, SE-351 96 Växjö, 6 Sweden 7 2Johnson Matthey Technology Centre, Blounts court, Sonning Common, Reading, RG4 9NH, United 8 Kingdom 9 *Corresponding author:
[email protected] 10 11 Keywords: Chemical vapour deposition, thermal strengthening, crack resistance, contact angle, 12 hardness 13 14 Declaration of interest: none. 15 16 Abstract 17 In the current paper we present a concept combining metal organic chemical vapor deposition with 18 thermal strengthening process of flat glass. As the flat glass is heated to be thermally strengthened, 19 which takes a few minutes, there is an opportunity for performing a surface modification. We describe 20 the application of transparent and amorphous Al2O3 thin films during the thermal strengthening process. 21 Al2O3 was chosen due to the following desirable properties: increased surface mechanical properties 22 and increased chemical durability, the latter has not been investigated in the current paper. The residual 23 surface compressive stresses after performed strengthening of the coated glasses were quantified to 24 be in the range of 80-110 MPa. The Al2O3 content in the surface was measured using the Surface 25 Ablation Cell employed with Inductively Coupled Plasma Atomic Emission Spectroscopy and found to 26 be at least doubled at the surface and having an increased Al2O3 content at least 0.5 µm underneath 27 the glass surface.