Influence of Tm3+ Concentration on Long Afterglow and Photostimulated Luminescence Properties of Eu2+-Doped Sr1Al2Si2O8 Blue Phosphors

Summary: This study investigates the kinetics of macroscopic strain localization in a bimetal formed by electron-beam cladding of a 09G2S low-carbon steel wire on a St.3 substrate. Mechanical uniaxial-tension tests are conducted on flat samples at a constant rate and room temperature. The mechanical properties and plastic flow stages in the bimetal are compared to those of the starting materials. The kinetics of plastic strain localization zones in different bimetal layers is studied using digital speckle photography.

Summary: This study fabricated Eu3+ and Dy3+ codoped Y2O3 (Y2O3:Eu3+, Dy3+) based bifunctional nanocomposites by solid-state route, with Fe or Fe3O4 as the magnetic component. The composition, microstructure, and formation mechanism of the nanocomposites were investigated, revealing that they are mainly composed of Y2O3:Eu3+, Dy3+ nanorods and Fe (or Fe3O4) nanoparticles with specific size characteristics. The fluorescence and magnetism of the nanocomposites were evaluated based on the influences of the amount of raw materials.