Physicochemical Properties of Nanosized Powders of the LaPO4–DyPO4–H2O System
- Авторлар: Mezentseva L.1, Osipov A.1, Ugolkov V.1, Popova V.1, Maslennikova T.1, Kuchaeva S.1, Yakovlev A.1
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Мекемелер:
- Grebenshchikov Institute of Silicate Chemistry
- Шығарылым: Том 44, № 5 (2018)
- Беттер: 423-427
- Бөлім: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/216710
- DOI: https://doi.org/10.1134/S1087659618050139
- ID: 216710
Дәйексөз келтіру
Аннотация
Nanosized La1–xDyxPO4 · nH2O powders are synthesized by the sol-gel method using direct and reverse precipitation. The formation of a continuous series of hexagonal solid solutions based on LaPO4 · nH2O is confirmed by the XRD and DSC/TG methods. A continuous series of monoclinic solid solutions based on LaPO4 is formed at temperatures higher than 600°C. A reflex corresponding to a tetragonal form of DyPO4 is formed during the calcination of DyPO4 powder at 850°C. Two types of solid solutions are observed at temperatures of 1000–1200°C, namely, monoclinic solutions based on LaPO4 (to x ≈ 0.7) and tetragonal solutions based on DyPO4 (0.90 ≤ x ≤ 1.0). The results are compared depending on the methods of nanopowder synthesis.
Авторлар туралы
L. Mezentseva
Grebenshchikov Institute of Silicate Chemistry
Хат алмасуға жауапты Автор.
Email: la_mez@mail.ru
Ресей, St. Petersburg, 199034
A. Osipov
Grebenshchikov Institute of Silicate Chemistry
Email: la_mez@mail.ru
Ресей, St. Petersburg, 199034
V. Ugolkov
Grebenshchikov Institute of Silicate Chemistry
Email: la_mez@mail.ru
Ресей, St. Petersburg, 199034
V. Popova
Grebenshchikov Institute of Silicate Chemistry
Email: la_mez@mail.ru
Ресей, St. Petersburg, 199034
T. Maslennikova
Grebenshchikov Institute of Silicate Chemistry
Email: la_mez@mail.ru
Ресей, St. Petersburg, 199034
S. Kuchaeva
Grebenshchikov Institute of Silicate Chemistry
Email: la_mez@mail.ru
Ресей, St. Petersburg, 199034
A. Yakovlev
Grebenshchikov Institute of Silicate Chemistry
Email: la_mez@mail.ru
Ресей, St. Petersburg, 199034