Reactive sintering of highly-doped YAG/Nd3+:YAG/YAG composite ceramics
| Autor: | G Andrey Doroshenko, B Viktor Taranenko, V Sergey Frolov, O Ihor Vorona, V Sergey Parkhomenko, P Roman Yavetskiy, G Ekaterina Chernomorets, A Ruslan Limarenko, Denis Kosyanov Yu., V Alexander Tolmachev |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
optical properties
010302 applied physics sintering Materials science microstructure Composite number Doping Sintering 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences lcsh:TP785-869 Nd3+ :YAG lcsh:Clay industries. Ceramics. Glass visual_art 0103 physical sciences pressing Ceramics and Composites visual_art.visual_art_medium Ceramic Composite material 0210 nano-technology lasers |
| Zdroj: | Processing and Application of Ceramics, Vol 11, Iss 4, Pp 290-295 (2017) |
| ISSN: | 2406-1034 1820-6131 |
| Popis: | Multilayer YAG/Nd3+:YAG/YAG composite laser ceramics were obtained by the reactive sintering in vacuum. The effect of the neodymium ion concentration (1-4 at.%) on the formation of defects and optical quality of composite ceramics was studied. It was found that neodymium ions modify densification kinetics during solid-state reactive sintering of the highly-doped Nd3+:YAG ceramics by decreasing shrinkage rate in the temperature range 1320-1350 ?C. Differences in phase transformation kinetics during reactive sintering lead to generation of pores at the interface of adjacent layers which decrease the optical homogeneity of fabricated YAG/Nd3+:YAG/YAG composite ceramics. The influence of layered structure on the laser performance of optical ceramics was investigated. It was shown that the ceramics with multilayer composite architecture have slope efficiency almost twice as the single-layer ceramics with the same composition (22% and 12.5%, respectively). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|