稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2014年
3期
254-258
,共5页
M.Ivanov%Yu.Kopylov%V.Kravchenko%李江%A.Medvedev%潘裕柏
M.Ivanov%Yu.Kopylov%V.Kravchenko%李江%A.Medvedev%潘裕柏
M.Ivanov%Yu.Kopylov%V.Kravchenko%리강%A.Medvedev%반유백
RE-doped ceramics%nanopowders%ytterbium oxide%transparency
To prepare ytterbium doped lanthania yttria nanopowder a method of laser evaporation of mixed oxides was used. After calcinations of the powder at 1200 °C a pure single-phase solid solution Yb3+:(LaxY1-x)2O3 was formed in the nanoparticles. Influence of lanthanum oxide as an isovalent additive on the yttria structure was investigated. The lanthanium ions were proved to be a good aid to sinter yttria ceramics doped with Yb3+at moderate temperatures about 1650 °С. The ceramics with relative density higher than 99.99%and grain size about 40 μm were fabricated. Full transmittance of 1.8 mm thick Yb0.11La0.23Y1.66O3 ceramics reached 82.5%at 800 nm. This material could be a good gain medium for ytterbium high power pulse lasers.
