evaporation

Dear Colleagues

I would like to share with you our recent work published on Journal of the Mechanics and Physics of Solids.

Abstract

Liu, M., Wu, J., Gan, Y., Hanaor, D. A., & Chen, C. Q. (2018). Tuning capillary penetration in porous media: Combining geometrical and evaporation effects. International Journal of Heat and Mass Transfer, 123, 239-250.

Liu, M., Wu, J., Gan, Y., Hanaor, D. A., & Chen, C. Q. (2016). Evaporation limited radial capillary penetration in porous media. Langmuir, 32(38), 9899-9904.

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.