Ionizing radiation effect of HDPE measured by nano-hardness

Abstract

This article deals with the influence of different doses of Beta radiation on nano-mechanical properties of High-density polyethylene (HDPE). These nano-mechanical properties were measured by the Depth Sensing Indentation - DSI method on samples which were non-irradiated and irradiated by different doses of the β - radiation. The highest values of nano-mechanical properties were reached at radiation dose of 99 kGy, when the nano-hardness values increased by about 23%. The purpose of the article is to consider to what extent the irradiation process influences the resulting nano-mechanical properties measured by the Depth Sensing Indentation method.