Nanoindentation Hardness and Practical Scratch Resistance in Mechanically Tunable Anti-Reflection Coatings
نویسندگان
چکیده
This work presents fundamental understanding of the correlation between nanoindentation hardness and practical scratch resistance for mechanically tunable anti-reflective (AR) hardcoatings. These coatings exhibit a unique design freedom, allowing quasi-continuous variation in thickness central hardcoat layer multilayer design, with minimal impact on optical performance. allows detailed study anti-reflection coating durability based variations vs. depth profiles, without results being confounded by optics. Finite element modeling is shown to be useful tool analysis profiles these films. Using samples fabricated reactive sputtering, were correlated using three different abrasion test methods, simulating real world events. Scratch depths from experiments are correlate scratches observed field consumer electronics devices chemically strengthened glass covers. For high resistance, designs >15 GPa maintained over 200–800 nm found particularly excellent, which substantially greater than can achieved previously common AR designs.
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ژورنال
عنوان ژورنال: Coatings
سال: 2021
ISSN: ['2079-6412']
DOI: https://doi.org/10.3390/coatings11020213