CATHODOLUMINESCENCE OF ALUMINUM OXYNITRIDE Al5O6N WITH DOUBLE DOPING BY RARE-EARTHED IONS

Pulsed cathodoluminescence of aluminum oxynitride Al5O6N doped with Er3+, Ho3+ and Ho3+, Tm3+ ions has been measured. The narrow lines registered at 460, 480 and 663 nm are related to 1D2→3F4, 1G4→3H4 transitions in Tm3+ ion and 5F5→6I8 transition in Ho3+ ion.Работа выполнена при поддержке Российского Фонда Фундаментальных Исследований (проект РФФИ № 17-03-00630_а)

THERMOLUMINESCENT DETECTOR BASED ON ALUMINUM OXYNITRIDE Al5O6N:Ce3+

The new working medium for thermoluminescent dosimetry based on Сe-doped aluminum oxynitride has been proposed. It has a number of advantages for radiation monitoring due to low temperature of main dosimetric peak, high luminescence quantum yield and upper limit of linear dose dependence range at 60 Gy

The bulk properties of pd-si alloys at temperatures from room temperature to 1600 degrees C

The absolute method of penetrating gamma radiation is used to measure the temperature dependences of density of Pd-Si alloys containing 11 to 33 at.% Si in the range from room temperature to 1600 degrees C. The resultant data are used for determining the liquidus and solidus temperatures of investigated alloys, the variation of their density in melting, and pre-crystallization cooling which corresponds to the cooling rate of 2 degrees C/min

Temperature dependences of density and ultrasound velocity of the eutectic Bi-44.6 wt.% Pb melt

Measurements of temperature dependences of density d and ultrasound velocity V-s of the eutectic Bi-44.6 wt.% Pb alloy were performed from eutectic temperature up to 550-900 degrees C. Density was studied using gamma absorption method. Ultrasound velocity was determined by pulse phase method. The dependences V-s(T) and d(T) are linear in temperature interval of measurements and can be approximated by the equations: V-s(T) = 1788 - 0.269 (T - 398) m center dot s(-1). d(T) = 10271 - 1.29 (T - 398) kg center dot m(-3) These results are found to be in good agreement with data of other works. (C) 2005 Springer Science + Business Media, Inc

An experimental investigation of the velocity of sound in molten lead and bismuth and in their reciprocal eutectic alloy at high temperatures

This study was supported by the Russian Foundation for Basic Research (project nos. 09-08-00040a and 07-08-00589a).The pulse-phase method is used for measuring the velocity of sound in liquid lead and bismuth and in lead-bismuth eutectic in the range from the melting temperature to 1380 K. The purity of investigated metals is 9.99% by mass or better. The confidence error of experimental results does not exceed 0.3%. The experimental data are compared with those available from the literature

The bulk properties of pd-si alloys at temperatures from room temperature to 1600 degrees C

The absolute method of penetrating gamma radiation is used to measure the temperature dependences of density of Pd-Si alloys containing 11 to 33 at.% Si in the range from room temperature to 1600 degrees C. The resultant data are used for determining the liquidus and solidus temperatures of investigated alloys, the variation of their density in melting, and pre-crystallization cooling which corresponds to the cooling rate of 2 degrees C/min

Temperature dependences of density and ultrasound velocity of the eutectic Bi-44.6 wt.% Pb melt

Measurements of temperature dependences of density d and ultrasound velocity V-s of the eutectic Bi-44.6 wt.% Pb alloy were performed from eutectic temperature up to 550-900 degrees C. Density was studied using gamma absorption method. Ultrasound velocity was determined by pulse phase method. The dependences V-s(T) and d(T) are linear in temperature interval of measurements and can be approximated by the equations: V-s(T) = 1788 - 0.269 (T - 398) m center dot s(-1). d(T) = 10271 - 1.29 (T - 398) kg center dot m(-3) These results are found to be in good agreement with data of other works. (C) 2005 Springer Science + Business Media, Inc

An experimental investigation of the velocity of sound in molten lead and bismuth and in their reciprocal eutectic alloy at high temperatures

This study was supported by the Russian Foundation for Basic Research (project nos. 09-08-00040a and 07-08-00589a).The pulse-phase method is used for measuring the velocity of sound in liquid lead and bismuth and in lead-bismuth eutectic in the range from the melting temperature to 1380 K. The purity of investigated metals is 9.99% by mass or better. The confidence error of experimental results does not exceed 0.3%. The experimental data are compared with those available from the literature