Elastic Modulus of Coatings by Pendulum Impact Test
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2014, Vol 37, Issue 1
Abstract
The pendulum impact scratch device with high precision system in measuring normal and tangential forces during scratching has been used to study elastic modulus of coatings. The criterion for evaluation of elastic modulus of coating and its experimental principle have been described and a series SiC and SiN thin films coated by PNCVD have been tested. The test results indicate that elastic modulus of SiC coatings has a good line relationship with Si content and there is a peak value in middle Si content. The experimental results also show that the newly developed device is useful in the evaluation of elastic modulus of coating especially under dynamic state and the method is characterised by reliability, validity and simplicity.
Authors and Affiliations
Stela CONSTANTINESCU
Keywords
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