Optimizing Combination of Parameters for Pull-off Adhesion Testing through Design of Experiment Study

Authors Sana Ullah 1,3, Ronald Weilguny2, Sorschag Kurt2, Gunter Zieger2

1IUSS - Istituto Universitario di Studi Superiori di Pavia, Palazzo del Broletto - Piazza della Vittoria n.15, 27100 Pavia, Italia

2Infineon Technologies, Siemensstraße 2, 9500 Villach, Austria

3Department of Mechanical Engineering, Khwaja Fareed University of Engineering & Information Technology, Abu Dhabi Road, Rahim Yar Khan, Pakistan

Е-mail sanaullahzafar@yahoo.com
Issue Volume 10, Year 2018, Number 4
Dates Received 05 January 2018; revised manuscript received 08 August 2018; published online 25 August 2018
Citation Sana Ullah, Ronald Weilguny, et al., J. Nano- Electron. Phys. 10 № 4, 04007 (2018)
DOI https://doi.org/10.21272/jnep.10(4).04007
PACS Number(s) 00.06. 07.05.Fb
Keywords Adhesion Strength, Pull-Off Adhesion Testing, Design of Experiment, Thin Films (60) .

A minimum of adhesion strength of thin films and coatings to substrates is required for their durable applications. Practical Adhesion is measure of that strength required to pull-off coating or film from the substrate. A suitable method to measure this adhesion strength has to be one that allows quantitative repeatable hence reliable results. There are many methods and techniques to measure this practical adhesion. However, none inclusively quantifies adhesion with repeatable results. Pull-Off method involves application of tensile forces and delivers quantitative results. Here we report optimizations made in combination of parameters for Pull-Off adhesion testing. Optimized combination of adhesive mixing ratio, time for hardening (curing), time to test after hardening and applied force rate was achieved through detailed Design of Experiment study. Achieved combination delivered results which were quantitative, repeatable, consistent and uniform and allowed application of method to a variety of coatings and films with enhanced reliability. The improvements here in reported are applicable to majority of thin films and coating systems delivering some standardized parameters combination for pull-off method.

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