350 rub
Journal №1 for 2017 г.
Article in number:
Features of silver bromide electron beam evaporation with laser assisted, structure and morphology of deposited coatings
Keywords:
thin coating
silver bromide
laser assistance
electron-beam evaporation
morphology
thermal annealing
Authors:
M.A. Yarmolenko - Ph.D. (Eng.), Associate Professor, Leading Research Scientist, Francisk Skorina Gomel State University
Е-mail: simmak79@mail.ru
A.A. Rogachev - Dr.Sc. (Eng.), Associate Professor, Leading Research Scientist, A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus (Minsk)
E-mail: rogachev78@mail.ru
A.V. Rogachev - Corresponding Member of NANB, Dr.Sc. (Chem.), Professor, Francisk Skorina Gomel State University; Director of Scientific Research Institute of Physical and Chemical
Abstract:
Regularities of the laser assisted electron-beam evaporation of silver bro-mide on the structure and morphology of the deposited coatings were defined. Process of evaporation was carried out by a electron beam current density J = 50-500 A/m2, particles energy Е = 0,1-2,5 кeV. As the assisted radiation was used nanosecond UV radiation with a wavelength λ = 266 nm and energy of a laser impulse 120 mJ. It is shown that additional photolytic impact of a laser radiation on a target reduces growth rate of deposition. The increase content of bro-mine in target was registered. It is demonstrates the dissociation of silver bromide in a target. By the EDAX and UV-Vis spectroscopy the formation of nano-claters of silver and silver bromide in deposited coatings was established. High-temperature treatment and subsidiary impact of UV-radiation on a coating promotes increase content of silver, leads to formation of more smooth topography.
Pages: 32-38
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