Temat: 82.45.+z - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Electrochemical Properties and Absorption Spectra of Conducting Films of Tetrathyotetracene Iodids
Autorzy:: Kaplunov, M. G.
Shamaev, S. N.
Powiązania:: https://bibliotekanauki.pl/articles/1933370.pdf
Data publikacji:: 1995-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 82.45.+z
78.40.Kc
Opis:: Films of tetrathyotetracene (TTT) iodides were obtained by doping of evaporated TTT films with iodine from I-containing solutions. TTT was evaporated onto a conducting substrate which then was used as an anode in KI solution. As a result of electrochemical reaction, iodine penetrated into the TTT film forming conducting TTT iodides. Cyclic voltamogrammes and absorption spectra show at least two stable forms of TTT-I$\text{}_{x}$, differing by iodine contents.
Źródło:: Acta Physica Polonica A; 1995, 87, 4-5; 811-814
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: 1,1-Dithiolenes: the Good, the Not Bad, and the Ugly
Autorzy:: Cassoux, P.
Bowlas, C. J.
Lahlil, K.
Moradpour, A.
Bonvoisin, J.
Launay, J.-P
Powiązania:: https://bibliotekanauki.pl/articles/1933327.pdf
Data publikacji:: 1995-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 33.20.-t
82.40.-g
82.45.+z
33.10.-n
82.30.-b
Opis:: A series of 1, 1'-dithiolate ligands were used in the attempted preparation of metal complexes. These bidentate sulphur ligands were subsequently used in aromatic nucleophilic substitution reactions giving rise to several novel organic donor molecules. The electrochemistry data of two of the donors and their subsequent use in the preparation of donor-acceptor compounds is presented. One donor-acceptor compound exhibited high room temperature conductivity (up to 900 S cm$\text{}^{-1}$) and remained metallic down to low temperature. One donor containing two tetrathiafulvalene units was studied by near infrared absorption spectroscopy. An intervalence transition in the monocation form of this donor was observed, indicating that it behaves as a class II mixed valence compound.
Źródło:: Acta Physica Polonica A; 1995, 87, 4-5; 743-748
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Structure and corrosion resistance of nickel-molybdenum alloy coatings
Autorzy:: Popczyk, M.
Zacharz, M.
Osak, P.
Dercz, G.
Łosiewicz, B.
Powiązania:: https://bibliotekanauki.pl/articles/1154527.pdf
Data publikacji:: 2016-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.15.-z
82.45.Qr
82.45.Bb
Opis:: Electrolytic Ni-Mo alloy coatings were obtained from the galvanic bath, at the temperature of T= 60°C under galvanostatic conditions using a cathodic current density of j= 80 mA cm¯². Surface morphology was studied using a scanning electron microscopy. Chemical composition of obtained coatings was determined by the energy dispersive spectroscopy. Structural studies were carried out using an X-ray diffraction method. Electrochemical corrosion resistance tests were carried out in 5% NaCl solution. It was found that X-ray diffraction investigations of all obtained coatings showed the characteristic "halo", which suggests that the obtained deposits have an amorphous structure. Chemical composition and corrosion resistance of the electrolytic Ni-Mo coatings depend on the concentration of Na₂MoO₄· 2H₂O in a galvanic bath. With the increase of the molybdenum content in the alloy coatings, their corrosion resistance increases.
Źródło:: Acta Physica Polonica A; 2016, 130, 4; 1072-1074
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: The Study of Electroless Ni-P/Ni-B Duplex Coating on HVOF-Sprayed Martensitic Stainless Steel Coating
Autorzy:: Mindivan, F.
Mindivan, H.
Powiązania:: https://bibliotekanauki.pl/articles/1032545.pdf
Data publikacji:: 2017-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.15.-z
81.40.Pq
82.45.Bb
Opis:: High velocity oxygen fuel sprayed stainless steel coatings have been widely used in various industries to repair damaged components. However, its broad application is limited due to its comparatively low hardness and inferior tribological properties. In this work, electroless Ni-P/Ni-B duplex coating with a thickness of ≈ 40 μm was deposited on surfaces of HVOF-sprayed 420 martensitic stainless steel substrate, and its structural, corrosion and tribological properties were characterized. Experimental results showed that upper Ni-B coating deposited on the surface of first Ni-P layer by duplex treatment exhibited superior hardness, wear and corrosion resistances as compared to the HVOF-sprayed 420 martensitic stainless steel coating with a thickness of about 150 μm.
Źródło:: Acta Physica Polonica A; 2017, 131, 1; 64-67
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Corrosion Properties of CrAlN and TiAlN Coatings Deposited by Thermoreactive Deposition Process
Autorzy:: Cegil, O.
Kılınc, B.
Sen, S.
Sen, U.
Powiązania:: https://bibliotekanauki.pl/articles/1194669.pdf
Data publikacji:: 2014-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 82.45.Bb
81.65.Kn
81.15.-z
Opis:: In the present study, the corrosion behaviors of chromium aluminum nitride (CrAlN) and titanium aluminum nitride (TiAlN) coatings deposited on AISI D2 steel samples are reported. Steel samples were pre-nitrided at 575C for 8 h in the first step of the coating process, and then TiAlN and CrAlN coatings were performed by thermoreactive deposition process in a powder mixture consisting of alumina, ammonium chloride, aluminum and ferrous titanium or ferrous chromium for TiAlN or CrAlN, respectively. Coating treatments were realized at 1000C for 2 h. Coated samples were characterized by X-ray diffraction analysis, optical microscopy, scanning electron microscopy, and microhardness tester. The corrosion properties of uncoated and coated samples were characterized by potentiostatic polarization test. CrAlN and TiAlN coated steel specimens exhibited the higher corrosion resistance than uncoated steels in a 0.5 M NaCl solution.
Źródło:: Acta Physica Polonica A; 2014, 125, 2; 359-361
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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