Reduced Young modulus and hardness of electron irradiated binarypotassium-silicate glass

0389361 - FZÚ 2013 RIV NL eng J - Journal Article
Gedeon, O. - Lukeš, J. - Jurek, Karel
Reduced Young modulus and hardness of electron irradiated binarypotassium-silicate glass.
Nuclear Instruments & Methods in Physics Research Section B. Roč. 275, MAR (2012), s. 7-10. ISSN 0168-583X. E-ISSN 1872-9584
R&D Projects: GA ČR GA104/09/1269
Institutional research plan: CEZ:AV0Z10100521
Keywords : electron radiation * silicate glass * mechanical properties
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.266, year: 2012

Binary potassium silicate glass of composition 15 mol% K2O + 85 mol% SiO2 was irradiated with 50 keV electrons. Dependence of mechanical properties of the irradiated glass on electron doses were measured by means of nanoindentation. The reduced Young modulus and hardness decrease for higher doses. The changes in mechanical properties are dominantly determined by the density variation and silica network depolymerisation during the electron bombardment.
Permanent Link: http://hdl.handle.net/11104/0218242