Luminescence of the tungsten-activated MgF2 ceramics synthesized under the electron beam; Nuclear Instruments and Methods in Physics Research B; Vol. 435

Luminescence of the tungsten-activated MgF2 ceramics synthesized under the electron beam; Nuclear Instruments and Methods in Physics Research B; Vol. 435

Detalles Bibliográficos
Parent link:	Nuclear Instruments and Methods in Physics Research B Vol. 435.— 2018.— [P. 263-267]
Autor Corporativo:	Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
Outros autores:	Lisitsyn V. M. Viktor Mikhailovich, Lisitsyna L. A. Lyudmila Aleksandrovna, Dauletbekova A. K. Alma Kezhemkulovna, Golkovsky M. G. Mikhail Gedalievich, Karipbaev Zh. Zhakyp, Musakhanov D. A. Dosymkhan Abitkhanovich, Akilbekov A. T. Abdirash Tasanovich, Kozlovskiy A. L. Artem Leonidovich, Polisadova E. F. Elena Fyodorovna
Summary:	Title screen For the first time the possibility of synthesizing of an optical ceramics MgF2 using a powerful electron beam as a heater is shown. In the process of synthesis, the charges consisting of magnesium fluoride powder with different ratio between the dopants WO3 and LiOH were exposed to an electron beam with 1.4 MeV electron energy and power of 18 kW on an area of 1 cm2. Investigations of the elemental composition and structure of the synthesized ceramics showed the presence of crystalline phases MgF2, W, WO3, and Mg in the samples. The size of the crystalline grains and efficiency of their formation depend on the composition of the charge. It was found that the synthesized ceramics samples luminesce in the 470 nm region at 300 K. Excitation spectrum of this emission in ceramics consists of two bands with maxima at 250 nm and about 200 nm. The spectral properties of MgF2 ceramics in general are similar to those in ZnWO4 single crystals and LiF crystals doped with tungsten oxide. Режим доступа: по договору с организацией-держателем ресурса
Idioma:	inglés
Publicado:	2018
Subjects:	электронный ресурс труды учёных ТПУ synthesis of MgF2 ceramics powerful electron beam tungsten oxide photoluminescence синтез керамика электронные лучи оксид вольфрама фотолюминесценция
Acceso en liña:	https://doi.org/10.1016/j.nimb.2017.11.012
Formato:	Electrónico Capítulo de libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665895

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