TY - JOUR

T1 - SYNTHESIS, CHARACTERISTICS AND LUMINESCENT PROPERTIES OF NANOSTRUCTURED ALUMINA CERAMICS IRRADIATED WITH HIGH DOSE

AU - Petrovykh, K.A.

AU - Kortov, V.S.

AU - Zvonarev, S.V.

AU - ustyantsev, Yu.G.

AU - Rempel, A.A.

PY - 2012

Y1 - 2012

N2 - Nanostructured ceramics of α-Al 2O 3 was prepared by means of high temperature vacuum sintering of high purity alumina powder. Scanning electron microscopy showed that after sintering particles size expanded slightly but did not exceed 300 nm. The main features of thermal and pulsed cathodoluminescence of nanoceramics were studied. It was revealed that luminescence bands are produced by oxygen vacancies in anion-defective α-Al 2O 3 single crystals. It was found that Cr 3+ ions contribute to luminescence intensity in spite of their extremely low concentration as well.

AB - Nanostructured ceramics of α-Al 2O 3 was prepared by means of high temperature vacuum sintering of high purity alumina powder. Scanning electron microscopy showed that after sintering particles size expanded slightly but did not exceed 300 nm. The main features of thermal and pulsed cathodoluminescence of nanoceramics were studied. It was revealed that luminescence bands are produced by oxygen vacancies in anion-defective α-Al 2O 3 single crystals. It was found that Cr 3+ ions contribute to luminescence intensity in spite of their extremely low concentration as well.

UR - https://elibrary.ru/item.asp?id=19015580

M3 - Article

VL - 55

SP - 167

EP - 169

JO - Известия вузов. Физика

JF - Известия вузов. Физика

SN - 0021-3411

IS - 11-3

ER -