Abstract
An accurate and reliable electrical technique for continuous monitoring of crack growth in fracture specimens containing technologically relevant thin-film device structures has been developed. Both adhesive and cohesive crack growth measurements are reported using a SiO2 passivation layer and a conducting titanium film deposited on the side face of fracture specimens. Crack velocity measurements approaching 10-12 m/s were achieved, representing nearly an order of magnitude improvement over commonly used compliance-based techniques. The technique may be particularly useful for elucidating near threshold crack velocity behavior, which is important for thin-film reliability.
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Guyer, E.P., Dauskardt, R.H. Electrical technique for monitoring crack growth in thin-film fracture mechanics specimens. Journal of Materials Research 19, 3139–3144 (2004). https://doi.org/10.1557/JMR.2004.0421
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DOI: https://doi.org/10.1557/JMR.2004.0421