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- Article name
- Technology, properties and applications of optically transparent oxide ceramics: prospects for development
- Authors
- LUKIN E. S., , lukin@rctu.ru, Russian University of Chemical Technology named after D. I. Mendeleev, Moscow, Russia
POPOVA N. A., , popova@rctu.ru, Russian University of Chemical Technology named after D. I. Mendeleev, Moscow, Russia
GLAZACHEV V. S., , vlagla@gmail.com, Russian University of Chemical Technology named after D. I. Mendeleev, Moscow, Russia
PAVLYUKOVA L. T., , lshaild4@gmail.com, Russian University of Chemical Technology named after D. I. Mendeleev, Moscow, Russia
KULIKOV N. A., , ceram@rctu.ru, Russian University of Chemical Technology named after D. I. Mendeleev, Moscow, Russia
- Keywords
- transparent ceramics / microstructure / microhardness / optical transparency / solid solutions / lattice parameters / crystal growth
- Year
- 2015 Issue 3 Pages 24 - 36
- Code EDN
- Code DOI
- Abstract
- The features of technologies and properties of optically transparent ceramic materials: aluminum oxide, yttrium and scandium oxides, yttrium-aluminum garnet and spinel MgO·Al2O3 were studied. Fields of material use are very broad: from electronics and nuclear energy industry to laser technology and armor technology. It is found that to obtain a material with the same crystal size necessary to use monofractional powders with a minimum size aggregates 0.1-0.3 microns. Since at the introduction of additives solid solutions with the base oxide are formed and lattice parameter changes authors recommend to use of combined additives, that allows realizes wide range of control over the microstructure and properties of transparent ceramics. The mechanism of crystal growth in large-crystalline materials is established. It has been shown that due to separation of processes of pores removing and crystal growth crystals during the recrystallization not capture pores and materials are made transparent. It is noted that the most transparent and optically uniform ceramic may be obtained by using highly monofractional powders with uniform distribution of addivives.
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