Yb3+ doped Lu2O3 transparent ceramics by spark plasma sintering
VEBER, Philippe
Centre National de la Recherche Scientifique [CNRS]
Universitatea de Vest din Timișoara [România] = West University of Timișoara [Romania] = Université Ouest de Timișoara [Roumanie] [UVT]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
< Reduce
Centre National de la Recherche Scientifique [CNRS]
Universitatea de Vest din Timișoara [România] = West University of Timișoara [Romania] = Université Ouest de Timișoara [Roumanie] [UVT]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Language
en
Article de revue
This item was published in
Ceramics International. 2013, vol. 39, n° 2, p. 1307-1313
Elsevier
English Abstract
Transparent ceramics of 10% Yb doped Lu2O3 was fabricated by spark plasma sintering. The operating vital parameters in yielding transparency and mutual effects of sintering, pressure, dwell time, heating rate and annealing ...Read more >
Transparent ceramics of 10% Yb doped Lu2O3 was fabricated by spark plasma sintering. The operating vital parameters in yielding transparency and mutual effects of sintering, pressure, dwell time, heating rate and annealing temperature on microstructure have been investigated. Fully compacted specimens were obtained at 1250 °C and the average grain size increased from few nm up to 5 μm until 1700 °C, above which abnormal grain growth was witnessed. The post-annealing of sintered ceramics at 1200 °C removes discoloration and improves transparency. The ceramics prepared at 1700 °C with dwell time of 5 min and heating rate at 50 °C/min shows the maximum transmittance with a thickness of 2 mm of 55% at a wavelength of 2 μm.Read less <
English Keywords
Grain growth
Sintering
Grain size
Grain boundaries
Grain growth
Origin
Hal imported