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Moscow, Russia

Simutin A.S.,Dukhov All Russia Research Institute of Automatics | Chernov M.Y.,Dukhov All Russia Research Institute of Automatics | Gasanov A.A.,OAO Giredmet | Orlov A.D.,RAS Institute of Solid State Physics | And 2 more authors.
Instruments and Experimental Techniques | Year: 2013

Results of investigations of the scintillation detector based on a LaBr3:Ce crystal and a ΦCyrillic capital letter EY-184 photomultiplier tube are presented. It is shown that, optimizing the ΦCyrillic capital letter EY-184 photomultiplier tube circuit by reading out the signal from the next to last dynode, it is possible to utilize the spectrometric properties of the LaBr3:Ce crystal. © 2013 Pleiades Publishing, Inc.

Kartavykh A.V.,Institute of Chemical Problems of Microelectronics IKhPM | Chinarov V.V.,OAO Giredmet
Inorganic Materials | Year: 2011

A simple laboratory technological bench (low-inertial high-temperature electric furnace) with a resistance plane heater based on SiC is produced. The bench makes it possible to carry out the spatial isothermal thermal treatment of samples with a volume of up to 8 cm 3, which are placed in the heater, with a controlled thermal cycle at temperatures of up to 2400°C within the inertial gas flow, including their hardening at the final stage of the process at a rate of up to 20°C/s. The photography and the video filming of the sample under test together with optical pyrometric control of its temperature can be carried out by means of a removable quartz or sapphire body of a reactor. Possible fields of application of the bench and the experimental technological and materials science problems are considered. Examples of the comparative investigation of the chemical compatibility of intermetal refractory alloy TiAl-Nb with crucible oxygen-free special ceramics AlN and BN during melting, superheating, fixed isochronous-isothermal holding of the melt at 1670°C, and its abrupt crystallization within test cymbiform crucibles in high-purity Ar are presented. © 2011 Pleiades Publishing, Ltd.

Kuz'Micheva G.M.,Lomonosov Moscow University of Fine Chemical Technology | Savinkina E.V.,Lomonosov Moscow University of Fine Chemical Technology | Belogorokhova L.I.,Moscow State University | Mavrin B.N.,Russian Academy of Sciences | And 3 more authors.
Russian Journal of Physical Chemistry A | Year: 2011

The nanosized η-TiO2 polymorph was prepared by the hydrolysis of titanyl sulfate (TiO)SO4 • xH2SO 4 • yH2O. η-TiO2 was studied by X-ray diffraction, X-ray photoelectron spectroscopy, IR spectroscopy, and Raman spectroscopy. Characteristic X-ray data and distinguishing Raman spectrum features were found for η-TiO2,. The surface of η-TiO 2 samples contained adsorbed OH- particles and water molecules or water molecules of crystal hydrates. The free specific surface area of samples with crystallite sizes of L = 50 (4) and 60 (5) Å was S = 10.17 (9) and 15.6 (1) m2/g. The characteristics of samples with η-TiO2 were favorable for their use as photocatalysts and adsorbents. © 2011 Pleiades Publishing, Ltd.

Kharlamova M.V.,Moscow State University | Eliseev A.A.,Moscow State University | Yashina L.V.,Moscow State University | Petukhov D.I.,Moscow State University | And 4 more authors.
JETP Letters | Year: 2010

Single-walled carbon nanotubes have been filled with cobalt bromide. The microstructure, optical properties, and effect of the introduced CoBr 2 compound on the electronic structure of the nanotubes have been studied. It has been shown that the electron density in the resulting nanocomposites is transferred from the walls of the nanotubes to the nanocrystals of cobalt bromide, which is an electron acceptor. © Pleiades Publishing, Inc., 2010.

Belogorokhov I.A.,OAO Giredmet | Dronov M.A.,Moscow State University | Tikhonov E.V.,Moscow State University | Pushkarev V.E.,Moscow State University | And 2 more authors.
JETP Letters | Year: 2010

The frequency dependences of the imaginary and real parts of the permittivity of organic semiconductors based on butyl-substituted erbium monophthalocyanine have been obtained. The static permittivity and damping factor, which characterizes the relaxation processes in the ensemble of phthalocyanine complexes, have been determined by fitting these dependences in the dipole approximation. © 2010 Pleiades Publishing, Ltd.

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