Results 1 to 10 of about 9,045 (132)

The Effects of Ozone Sterilization on the Chemical and Mechanical Properties of 3D-Printed Biocompatible PMMA [PDF]

Micromachines
Since ozone is highly corrosive, it can substantially affect the mechanical and chemical properties of the materials; consequently, it could affect the applicability of those materials in medical applications.
Ivan Morosavljević, Dražan Kozak, Tihomir Kosor, Janko Morosavljević, Luka Ferlič, Nenad Gubeljak   +5 more
doaj   +2 more sources

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

The gaseous hydrocarbon fuel combustion process diagnostics using laser-spark emission spectrometry

Journal of Physics: Conference Series, 2021
Abstract To solve the gaseous hydrocarbon fuel combustion process control and diagnostics problem, it is proposed to apply the laser-spark emission spectrometry methods. In propane-air mixture combustion, three modes are investigated: stoichiometric combustion, an enriched mixture, and a lean mixture.
M A Vaganov, V I Kazakov
openaire   +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

Distribution of Foliar-applied Boron Measured by Spark-source Mass Spectrometry and Laser-probe Mass Spectrography [PDF]

Plant Physiology, 1981
The distribution of foliar-applied boron ([(10)B]boric acid) in radish (Raphanus sativus L.) was studied using for analysis of the stable isotopes a technique allowing a high sensitivity: spark-source mass spectrometry. Boron was recovered in the nontreated aerial parts and in the roots; however, the greatest fraction was in the treated leaf.
A R, Chamel, A M, Andréani, J F, Eloy
openaire   +2 more sources

Erbium dopants in silicon nanophotonic waveguides [PDF]

, 2020
The combination of established nanofabrication with attractive material properties makes silicon a promising material for quantum technologies, where implanted dopants serve as qubits with high density and excellent coherence even at elevated ...
Gritsch, Andreas, Merkel, Benjamin, Reiserer, Andreas, Weiss, Lorenz   +3 more
core   +3 more sources