Results 1 to 10 of about 138 (138)

Determination of chemical composition on internal surfaces of hollow reinforced concrete structures under the influence of corrosion [PDF]

Омский научный вестник, 2020
The paper presents the results of experimental studies on the determination of corrosion products on the surface of reinforced concrete structures. Methods for creating samples with artificial electrocorrosion under conditions close to real operation ...
A. S. Bryukhova, N. V. Volkova, A. Yu. Kuzmenko, A. A. Kuznetsov   +3 more
doaj   +1 more source

Microstructure and diametral fracture strength of spark plasma sintered WC-6Co-0.2B and WC-6Co-0.5B ceramic composites from nanosized and metastable WC powders [PDF]

Cerâmica, 2022
The present work aimed at evaluating the microstructures and mechanical properties of spark plasma sintered WC-6 wt% Co ceramic composites doped with boron (0.2 and 0.5 wt%).
G. S. de Alencar e Silva, R. M. Leal Neto, M. Filgueira, C. A. R. P. Baptista, C. dos Santos, A. S. Ramos   +5 more
doaj   +1 more source

Improving the accuracy of determining corrosion products in reinforced concrete structures by atomic emission spectrum analysis

Омский научный вестник, 2023
To determine the composition of inhomogeneous samples using the method of laser-spark emission spectrometry, calibration dependences are used, which can have significant systematic errors that significantly affect the determination of the quantitative ...
A. A. Kuznetsov, N. V. Volkova, K. I. Fomichenko, D. M. Korshunov   +3 more
doaj   +1 more source

RESEARCH OF Al2O3 AND Al NANOPOWDER FORMATION PROCESSES IN PLASMA UNDER THE INFLUENCE OF DEFOCUSED DUAL LASER PULSES ON ALUMINUM IN THE AIR ATMOSPHERE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
The influence of the magnitude and type of defocusing of twin laser pulses on the purposeful formation of the component and charge composition of laser plasma under the influence of twin laser pulses on a target made of aluminum alloy AD1 (LSS-1 ...
Kh. Bazzal, E.S. Voropay, N.A. Alekseenko, M.N. Kovalenko, N.H. Trinh, A.P. Zazhogin   +5 more
doaj   +1 more source

Studies of processes of the precursor formation for production of CuAl2O4 nanoceramics at the effect of double laser pulses on AD1 and M2 alloys in the air atmosphere

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
A study of formation of mixed Al nanopowders, copper and aluminum oxides, and precursors for production of CuAlO2 and CuAl2O4 nanoceramics under the influence of double laser pulses with energy of 53 mJ and the interpulse interval of 10 microseconds on a
Maxim N. Kovalenko, Natalia A. Alekseenko, Ludmila V. Markova, Lubov S. Rutkovskaiy, Mariya P. Patapovich, Anatoli P. Zajogin   +5 more
doaj   +1 more source

Effect of Cobalt Doping and Milling Time on Microstructure and Vickers Microhardness of the Spark Plasma Sintered (67-x)Ti-xCo-22Si-11B (x = 2 and 6 at-%) Alloys [PDF]

Materials Research, 2020
Ti-6Al-4V and TiAl-based alloys are widely used for fabricating the implantable orthopedic devices and automotive components, respectively. Ti6Si2B-based alloys are attractive for use in orthopedic components because their higher hardness, superior ...
Nelson Damásio Ferreira, Ricardo Mendes Leal Neto, Marcello Filgueira, Manuel Fellipe Rodrigues Pais Alves, Claudinei dos Santos, Alfeu Saraiva Ramos   +5 more
doaj   +1 more source

SPECTRAL STUDIES OF THE DEFOCUSING EFFECT ON THE AND FORMATION PROCESSES WHEN D16T ALUMINUM ALLOY IS SUBJECTED TO DOUBLE LASER PULSES IN AIR

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
The effect exerted by defocusing of double laser pulses on purposeful formation of the component and charge composition of the laser plasma has been studied using the laser spark spectrometry (LSS-1 laser).
K. Bazzal, Е.S. Voropay, А.P. Zajogin, М.P. Patapovich   +3 more
doaj   +1 more source

SPECTRAL STUDIES OF THE Al2O3 AND AlN NANOPOWDER FORMATION EXPOSED ALUMINUM BY A SERIES OF TWIN LASER PULSES IN THE AIR ATMOSPHERE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
A study of the Al2O3 and AlN nanopowder formation under the influence of twin laser pulses with an energy of 52 mJ and between the pulse interval of 10 microseconds on an aluminum target placed in a closed glass rectangular box, depending on the number ...
Kh. Bazzal, N.A. Alekseenko, E.S. Voropay, M.N. Kovalenko, M.P. Patapovich, A.P. Zazhogin   +5 more
doaj   +1 more source

SPECTRAL STUDIES OF THE PROCESSES OF ALUMINUM NANOPOWDER FORMATION EXPOSED BY SHORT SERIES OF TWIN LASER PULSES IN THE AIR ATMOSPHERE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
The processes of formation of oxidized nanopowders depending on the number of pulses were studied when double laser pulses with an energy of 52 mJ and an interpulse interval of 10 microseconds were applied to an aluminum target placed in a closed ...
Kh. Bazzal, N.A. Alekseenko, E.S. Voropay, M. N. Kovalenko, N.H. Trinh, A.P. Zazhogin   +5 more
doaj   +1 more source

INVESTIGATION INTO THE AlN AND AlO RADICAL FORMATION PROCESSES IN THE PLASMA DUE TO DEFOCUSING OF DOUBLE LASER PULSES INCIDENT ON OXIDIZED ALUMINUM [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
The influence of the laser-pulse radiation defocusing on the formation of the desired component and charge composition of the surface plasma is studied using the laser spark spectrometry (LSS-1 spectrometer). The possibility for increasing the portion of
S.V. Protsenko, Aljdigaui Haidar Ali Rai, A.R. Fadaijan, E.S. Voropay, А.P. Zajogin   +4 more
doaj