Autor: Georgieva, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Electroless Deposition of Composite Nickel-Phosphorous Coatings with Diamond Dispersoid
Autorzy:: Petrova, M.
Georgieva, M.
Chakarova, V.
Dobreva, E.
Powiązania:: https://bibliotekanauki.pl/articles/353820.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: functional composites
electroless coatings
metal-matrix composites
non-metallic substrate
Opis:: The composite Ni-P coating with diamond particles (D) deposited on the flexible substrates of pressed polyethylene terephthalate material (PET) was obtained, to be used in the development of efficient, flexible grinding and polishing tools. The optimal conditions of the hydrodynamic regime, deposition time and temperature were found. The influence of the concentration and size of the D particles (3/7 ÷ 225/300 μm) on the coating thickness and number of co-deposited particles were studied. By Scanning Electron Microscopy (SEM) images were defined the morphology of dispersion coatings and number of co-deposited particles in them, and Energy Dispersive Spectroscopy (EDS/INCA) was used to determine the elemental chemical composition of the composite coatings.
Źródło:: Archives of Metallurgy and Materials; 2016, 61, 2A; 493-498
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Atomic Layer Deposition of Magnetic Thin Films
Autorzy:: Mantovan, R.
Georgieva, M.
Perego, M.
Lu, H.
Cocco, S.
Zenkevich, A.
Scarel, G.
Fanciulli, M.
Powiązania:: https://bibliotekanauki.pl/articles/1814033.pdf
Data publikacji:: 2007-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.15.-z
75.70.-i
Opis:: We report on the research effort towards the development of processes for the realization of magnetic tunnel junctions by atomic layer deposition. Our strategy follows two main schemes. The first is a hybrid process where the ferromagnetic layers are produced by chemical vapour deposition and the tunnel oxide is deposited by atomic layer deposition. As ferromagnetic electrodes we use Co and $Fe_3O_4$, while MgO, $Al_2O_3$, and $HfO_2$ are employed as tunnel oxides. The second and most intriguing scheme is a full-oxide approach in which the ferromagnetic layers and the tunnel barrier layer are all oxides grown by atomic layer deposition. As ferromagnetic layers we focused on the growth of complex manganites $(La_{0.7}Sr_{0.3}MnO_3)$ while as a tunnel oxide we propose $La_2O_3$. Film composition has been studied with time of flight secondary ion mass spectroscopy and Rutherford backscattering spectrometry. X-ray diffraction, X-ray reflectivity, and Fourier transform infrared spectroscopy have been used to investigate the structure and morphology of the layers. The magnetic properties of the films are measured by superconducting quantum interference device magnetometer.
Źródło:: Acta Physica Polonica A; 2007, 112, 6; 1271-1280
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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