Sintering of transparent Yb-doped Lu 2 O 3 ceramics using nanopowder produced by laser ablation method

Comparative study of Yb:Lu3Al5O12 and Yb:Lu2O3 laser ceramics produced from laser-ablated nanopowders

“…For the fabrication of the Yb 3+ -doped ceramics, we used Yb:Lu2O3 and Al2O3 nanopowders (mean particle size: 34 nm and 29 nm, respectively) synthesized by laser ablation and subsequent sedimentation [26,27]. This approach allowed us to produce nanopowders with a narrow particle size distribution which has a positive effect on the transparency of ceramics.…”

High-Transparent Ceramics Prepared Based on Nanopowders Synthesized in a Laser Torch. Part I: Preparation Features

“…При разработке технологии получения керамических активных элементов основное внимание уделяется формированию беспористой микроструктуры материала при сохранении характерного размера зерна в диапазоне от нескольких сотен нанометров до единиц микрометров, что важно для уменьшения локальной деполяризации лазерного излучения [24]. Это достигается за счет использования современных методов консолидации наночастиц, таких как спекание в искровой плазме [25][26][27][28][29] и постобработка горячим изостатическим прессованием [30][31][32][33][34].…”

“…Наименьшая длительность When developing the technology to produce ceramic active elements, the main attention is paid to the formation of a nonporous microstructure of the material while maintaining the characteristic grain size in the range from several hundred nanometers to micrometers, which is important for reducing the local depolarization of laser radiation [24]. This is achieved by using modern methods of nanoparticle consolidation, such as sintering in a spark plasma [25][26][27][28][29] and postprocessing by hot isostatic pressing [30][31][32][33][34].…”

From the Laser Plume to the Laser Ceramics

“…When developing the technology to produce ceramic active elements, the main attention is paid to the formation of a nonporous microstructure of the material while maintaining the characteristic grain size in the range from several hundred nanometers to micrometers, which is important for reducing the local depolarization of laser radiation [20]. To meet these requirements, synthesis techniques were developed based on spark plasma sintering [21][22][23], hot isostatic pressing [24][25][26], and vacuum sintering with doping of heterovalent ions [27]. The latter option is more attractive due to the less expensive and uncomplicated technology.…”