Zobrazeno 1 - 10
of 26
pro vyhledávání: '"G. Sh. Usmanova"'
Publikováno v:
Current Applied Physics. 20:1429-1434
The chemical and phase compositions and structure of the Fe–N–O films produced by reactive dc magnetron sputtering (in Ar or Ar + N2 gas mixture atmospheres) under different conditions (energy parameters of magnetron, residual pressure in the mag
Publikováno v:
Russian Metallurgy (Metally). 2016:826-831
Nanocrystalline Fe77Zr7N16 films are prepared by oblique-angle magnetron sputtering. The effect of the ion beam angle and subsequent annealing on the phase and structural states, the coercive force, the saturation magnetization, the remanent magnetiz
Autor:
Konstantin N. Rozanov, Ph. V. Kiryukhantsev-Korneev, S Y Bobrovskii, V. A. Tedzhetov, P.A. Zezyulina, G. Sh. Usmanova, Elena N. Sheftel, E.V. Harin
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 848:012082
The Fe-Ti-B films were obtained by dc magnetron sputtering of the Fe + 15% TiB2 and Fe + 30% TiB2 targets. The chemical composition and structure were studied in the as-sputtered state and after vacuum annealing at 500°C. The static (saturation magn
Publikováno v:
Thin Solid Films. 698:137876
The phase-structural state of Fe, Fe(1−x)Nx, Fe(1−y)Zry, and Fe(90−z)Zr10Nz films obtained by reactive magnetron sputtering under different energy and gas-atmosphere conditions was studied. It is shown that impurity elements (N, O) absorbed by
Autor:
Makhmut R. Yakubov, S. G. Yakubova, D. N. Borisov, G. Sh. Usmanova, D. V. Milordov, P. I. Gryaznov
Publikováno v:
Petroleum Science and Technology. 33:992-998
Primary porphyrin extracts were obtained from carbon tetrarchloride solutions of different heavy oil residuals with assistance of sulfuric acid. According to data of chromatographic separation of extracts porphyrinic fractions appear in amount of 13.
Autor:
G. Sh. Usmanova, G. V. Romanov, D. V. Milordov, Igor P. Kosachev, Makhmut R. Yakubov, S. G. Yakubova, P. I. Gryaznov, D. N. Borisov
Publikováno v:
Chemistry and Technology of Fuels and Oils. 51:222-230
Asphaltenes of various heavy oil resids are oxidized by aqueous sodium percarbonate solutions at 200°C and 4 MPa pressure. The composition and properties of the obtained products are analyzed. Water-soluble oxidation products in the asphaltene oxida
Publikováno v:
Crystallography Reports. 59:266-275
The evolution of the phase composition, nanostructure parameters, and macroscopic stress in soft magnetic Fe95 − xZr5Nx films (prepared by ion-plasma deposition onto quartz substrates) during their annealing has been investigated by X-ray diffracti
Publikováno v:
Chemistry and Technology of Fuels and Oils. 49:232-238
A comparative analysis has been made of the methods of porphyrin extraction from high-vanadium heavy oil asphaltenes using polar solvents and sulfuric acid. Chromatographic separation of the extracts, followed by analysis of the porphyrin fractions b
Autor:
G. Sh. Usmanova, D. N. Khmelenin, Elena N. Sheftel, A. Carlsson, O. M. Zhigalina, A. L. Vasil’ev
Publikováno v:
Crystallography Reports. 58:344-354
The effect of deposition conditions (film thickness) on the structure of soft magnetic Fe80–78Zr10N10–12 films formed by reactive magnetron deposition on a heat-resistant glass substrate has been investigated by analytical transmission electron m