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The use of energetic electrons to modify the optical and mechanical properties of several window materials was examined. The materials were exposed to fields of high-energy electrons (5 MeV at a dose of 1,000 MRad). In this paper, we will report on the electron irradiation effects on the following materials: alumina, ALON, ZnSe and ZnS. Alumina irradiated under these conditions revealed little if any changes in flexure strength at room temperature. Irradiation changes in ALON hardness were measured. The hardness fracture toughness of electron beam irradiated ZnS and ZnSe was examined by both indentation and known flaw methods. Toughness measured by both methods were then compared and contrasted to ascertain the effects induced by the irradiation. The electron irradiation produced changes in the fracture toughness of both the ZnS and the ZnSe. The optical properties of the ZnSe and ZnS were measured by FTIR indicated minor changes in the absorption spectra.
Thomas M. Regan,Gary A. Gilde, andSteven M Goodrich
"Electron irradiation of transparent and ceramics window materials", Proc. SPIE 4375, Window and Dome Technologies and Materials VII, (7 September 2001); https://doi.org/10.1117/12.439180
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Thomas M. Regan, Gary A. Gilde, Steven M Goodrich, "Electron irradiation of transparent and ceramics window materials," Proc. SPIE 4375, Window and Dome Technologies and Materials VII, (7 September 2001); https://doi.org/10.1117/12.439180