Carbothermal reduction synthesis of alumina ceramics for luminescent dosimetry / Kortov Vsevolod,Zvonarev Sergey,Kiryakov Arseniy,Ananchenko Dania // MATERIALS CHEMISTRY AND PHYSICS. - 2016. - V. 170, l. . - P. 168-174.

ISSN/EISSN:

0254-0584 / 1879-3312

Type:

Article

Abstract:

A method of carbothermal reduction in vacuum was used to synthesize oxygen-deficient alumina ceramics with blue luminescence. It was synthesized from nanopowder at varying temperatures and annealing time. The structure of the samples, particle size distribution, changes in density and mass of the samples at different synthesis temperatures were studied. In the obtained ceramics the spectra of pulse cathodoluminescence and photoluminescence are registered in the emission band centered at 420 nm, which is associated with the F-centers created by oxygen vacancies. The luminescent intensity grows with increasing temperature and annealing time. The thermoluminescence curves feature two peaks whose intensities depend on the temperature of the ceramics synthesis. The yield of the thermoluminescence peak at 410 K increases linearly with a growing dose in the range of 0.03-300 Gy under (3-irradiation. (C) 2015 Elsevier B.V. All rights reserved.

Author keywords:

Ceramics; Sintering; SEM; Luminescence ALPHA-AL2O3-C

DOI:

10.1016/j.matchemphys.2015.12.

Web of Science ID:

ISI:000369473600023

Соавторы в МНС:

Другие поля

Поле	Значение
Month	FEB 15
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
EISSN	1879-3312
Keywords-Plus	ALPHA-AL2O3-C
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Author-Email	vskortov@mail.ru
ORCID-Numbers	Kiryakov, Arseniy/0000-0002-1411-3917
Number-of-Cited-References	16
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	8
Journal-ISO	Mater. Chem. Phys.
Doc-Delivery-Number	DC8ML