Synthesis and sintering of submicron Nd:YAG particles prepared from carbonate precursors
- Авторы: Kolomiets T.Y.1, Tel’nova G.B.1, Ashmarin A.A.1, Chelpanov V.I.1, Solntsev K.A.1
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Учреждения:
- Baikov Institute of Metallurgy and Materials Science
- Выпуск: Том 53, № 8 (2017)
- Страницы: 874-882
- Раздел: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158278
- DOI: https://doi.org/10.1134/S0020168517080076
- ID: 158278
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Аннотация
Using high-temperature X-ray diffraction, differential scanning calorimetry, and electron microscopy, we have studied the formation of yttrium aluminates and Nd:YAG (YAG) activated garnet nanoparticles during the thermal decomposition of a poorly crystallized carbonate precursor prepared in the NH4Al(OH)2CO3–(Y,Nd)(ОН)CO3 nanosystem and the development of the morphological structure of powders during heating to a temperature of 1350°C. The results demonstrate that heat treatment in the temperature range 850–950°C leads to the formation of metastable nonstoichiometric YAlO3 with a garnet-like structure, which reacts with Al2O3 at a temperature of 1000°C to form YAG. The cubic cell parameter a and X-ray density of YAG crystals with the composition Y2.97Nd0.03Al5O12 synthesized at 1200°C are 1.2009 nm and 4.565 g/cm3, respectively, and the average particle size is 108 nm. Using carbonate route, we prepared transparent Nd:YAG ceramics with a relative density of 99.7%, X-ray density of 4.562 g/cm3, and crystallite size in the range 1–7 μm.
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Об авторах
T. Kolomiets
Baikov Institute of Metallurgy and Materials Science
Автор, ответственный за переписку.
Email: imet@ultra.imet.ac.ru
Россия, Leninskii pr. 49, Moscow, 119991
G. Tel’nova
Baikov Institute of Metallurgy and Materials Science
Email: imet@ultra.imet.ac.ru
Россия, Leninskii pr. 49, Moscow, 119991
A. Ashmarin
Baikov Institute of Metallurgy and Materials Science
Email: imet@ultra.imet.ac.ru
Россия, Leninskii pr. 49, Moscow, 119991
V. Chelpanov
Baikov Institute of Metallurgy and Materials Science
Email: imet@ultra.imet.ac.ru
Россия, Leninskii pr. 49, Moscow, 119991
K. Solntsev
Baikov Institute of Metallurgy and Materials Science
Email: imet@ultra.imet.ac.ru
Россия, Leninskii pr. 49, Moscow, 119991
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