Nanomechanical changes in the surface layer of polyamide 6.6 modified by beta radiation were measured by instrumented test of nanohardness. The specimens were prepared by injection technology and subjected to radiation doses of 0, 33, 66, 99, 132, 165, 198kGy. Measurements of nanohardness showed considerable changes of behavior of surface layer in middle as well as high radiation doses with higher values of indentation hardness and stiffness.
Kratky, P., Manas, D., Manas, M., Stanek, M., Ovsik, M., Kyas, K., & Reznicek, M. (2014). Nanohardness of electron beam irradiated polyamide 11. International Journal of Mechanics, 8(1), 37–44.