Thermomechanical Behavior of Developmental Thermal Barrier Coating Bond Coats

Authors: Amit Pandey 1, 2, Vladimir K. Tolpygo 3,  Kevin J. Hemker 1

1. The Johns Hopkins University, Department of Mechanical Engineering

2. Oak Ridge National Laboratory, Materials Science and Technology Division

In this paper, we report that silver films evaporated on poly-ethylene-terephthalate (PET) substrates coated with an acrylic primer can be stretched beyond 70% without fracture. As-deposited films show a larger failure strain than annealed coatings. These observations are rationalized in light of a ductile fracture mechanism where debonding from the substrate coevolves with strain localization. The results of this study indicate that PET substrates coated with an acrylic primer layer may be suitable for stretchable electronics.

This paper has been published in Journal of applied physics (2011) and can be downloaded from:

http://jap.aip.org/resource/1/japiau/v109/i7/p073511_s1

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Dear Friends,

The 19th International Conference on Wear of Materials with take place in Portland, Oregon, USA, 14-18 April 2013. Two typed of papers ar invited: 1) full-length research-qulity papers that involve materials aspects of wear, wear analysis and wear modeling, and 2)shorter, concise case studies. Both categories of papers will be peer reviewed for technical quality.

 All submissions should be made online at www.wearofmaterialsconference.com by 1 June 2012

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Hi,

 I want to know what are some useful softwares in which I can simulate multilayer coatings in terms of thermal (CTE mismatch) stresses, and stresses due to contact type loading. I am looking for softwares that are easy to use by a person like me who has an experimental background, does not have exposure to using Abaqus, but can use softwares like Matlab.

 Thank you in advance for your suggestions.

Regards,

Sudhir

Authors are invited to submit, via the conference website, a 200-250 word abstract by 1 June 2008. The 17th International Conference on Wear of Materials (www.wom-conference.elsevier.com) will take place in Las Vegas, April 19-22, 2009. The conference will focus on both the fundamental and applied aspects of wear and friction of materials at the macro-, micro- and nano-scale.