The influence of the Sc3+ dopant on the transmittance of (Y, Er)3Al5O12 ceramics

Autor:	Alexander Pynenkov, I.S. Chikulina, K. N. Nishchev, D.S. Vakalov, M.S. Nikova, E. A. Dobretsova, R. A. Khmelnitsky, Sergey V. Kuznetsov, V.A. Tarala, Vladimir B. Tsvetkov, Vadim Zhmykhov
Rok vydání:	2021
Předmět:	Inorganic Chemistry Erbium Materials science chemistry Dopant Annealing (metallurgy) Transmittance chemistry.chemical_element Sintering Yttrium Scandium Composite material Microstructure
Zdroj:	Dalton Transactions. 50:14252-14256
ISSN:	1477-9234 1477-9226
Popis:	High erbium content yttrium aluminum garnet (Er:YAG) and yttrium scandium aluminum garnet (Er:YSAG) ceramics have been fabricated from Er:YAG and Er:YSAG powders, respectively. The powders have been synthesized via a reverse precipitation technique, processed by uniaxial pressing followed by cold isostatic pressing, and sintered in a vacuum. TEOS (tetraethoxysilane) was used as a sintering additive. After vacuum sintering, all of the samples were processed by annealing in air to increase the transmittance and polished on both sides. The influence of the Sc3+ content and the synthesis conditions on the microstructure and optical transparency of the Er:YAG and Er:YSAG ceramics have been investigated in detail. It has been found that changing Al3+ for the bigger Sc3+ ion leads to the transmittance increasing to up to 60% at a wavelength of about 1500 nm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d67247b44f8e3dec8aaf8eadf024b8c3 https://doi.org/10.1039/d1dt02419a Zobrazit plný text záznamu