Article ID Journal Published Year Pages File Type
1460495 Ceramics International 2014 4 Pages PDF
Abstract

In this study, pure and Ca-, Mn-, and Zn-doped Y2O3 powders, synthesized by the polymeric precursor method, are sintered by a new laser sintering technique in which a CO2 laser, in continuous mode, is employed as the main heating source. The laser-sintered ceramics show a single crystalline phase and have high relative density (~98% Y2O3:Ca), with a homogeneous and crack-free microstructure. When excited with X-rays, the samples present identical radioluminescence (RL) emission spectra, with a band centered at 495 nm. This emission is thought due to the presence of self-trapped excitons (STE).

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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