Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Fe-Al" wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 182
Tytuł:
Chromatography of chelate metal complexes. V. Complexes of Fe (III), Cr (III) and Al(III) with violet R
Chromatografia kompleksów chelatowych metali. V. Kompleksy Fe(III), Cr(IIl) i Al(III) z fioletem R
Autorzy:
Masłowska, Joanna
Zakrzewski, Wacław
Powiązania:
https://bibliotekanauki.pl/articles/944787.pdf
Data publikacji:
1982
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Opis:
A new method of chromatographic paper separation of a mixture of ions Fe(III), Cr(III) and Al(III) has been elaborated with the use of differences of complexogenic properties of violet R in respect of the particular ions.
Źródło:
Acta Universitatis Lodziensis. Folia Chimica; 1982, 1
0208-6182
Pojawia się w:
Acta Universitatis Lodziensis. Folia Chimica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chromatography of metal chelate complexes. IV. Complexes of Fe (IIl), Cr (lII) and Al (III) with nitroso-R-salt
Chromatografia kompleksów chelatowych metali. IV. Kompleksy Fe (IIl), Cr (lll) i Al (lll) z nitrozo-R-solą
Autorzy:
Masłowska, Joanna
Zakrzewski, Wacław
Powiązania:
https://bibliotekanauki.pl/articles/944785.pdf
Data publikacji:
1982
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Opis:
A new method of chromatographic paper was - elaborated of separating a mixture of cations: Fe(III), Cr(III) and Al(III) from a medium containing nitroso-R-salt (NRS) as a complexogenic agent.
Opracowano nową metodę rozdzielania mieszaniny jonów Fe(III), Cr(III) i Al(III) opartą na chromatografii bibułowej kompleksów tych metali z nitrozo-R-solą. Wykazano, że nitrozo-R-sól tworzy z badanymi kationami kompleksy posiadające własne pasma pochłaniania oraz różniące się parametrami chromatograficznymi. Różnice te są na tyle duże, że pozwalają na pełne rozdzielenie mieszaniny jonów w procesie chromatografii bibułowej.
Źródło:
Acta Universitatis Lodziensis. Folia Chimica; 1982, 1
0208-6182
Pojawia się w:
Acta Universitatis Lodziensis. Folia Chimica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of complex formation reactions of Fe(III) and Al(III) with some phenol derivatives by the method of ion exchange
Badania reakcji kompleksowania Fe(III) i Al(III) z niektórymi pochodnymi fenolu metodą wymiany jonowej
Autorzy:
Masłowska, Joanna
Piętek, Włodzimierz
Powiązania:
https://bibliotekanauki.pl/articles/944792.pdf
Data publikacji:
1982
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Opis:
By the method of ion exchange on the exchanger Dowex 50 WX 8 100-200 mesh complex formation was investigated in the system Me(ClO₄)₃ + XC₆H₄OH + HClO₄ + NaClO₄ + H₂O, with Me = Fe(III) or Al(III) and X = Cl, Br, CH₃, NO₂. It was proved that 1:1 complexes are formed between Me(III) and a phenol molecule. Stability constants of the complexes were determined and related with Hammett’s sigma constants.
Źródło:
Acta Universitatis Lodziensis. Folia Chimica; 1982, 1
0208-6182
Pojawia się w:
Acta Universitatis Lodziensis. Folia Chimica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lattice Site Occupancy in Ternary Ordered Ni$\text{}_{3}$Al$\text{}_{1-x}$Fe$\text{}_{x}$ Alloys Estimated by EXAFS
Autorzy:
Ławniczak-Jabłońska, K.
Pascarelli, S.
Boscherini, F.
Kozubski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1920905.pdf
Data publikacji:
1992-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.10.Lx
61.55.Hg
Opis:
Extended X-ray absorption fine structure (EXAFS) spectroscopy offers additional experimental evidence to the solution of site occupancy problem in ternary NiAlX alloys. A study of local order in the stoichiometric Ni$\text{}_{3}$Al$\text{}_{1-x}$Fe$\text{}_{x}$ ternary alloys (x = 0.02, 0.05, 0.10, 0.15, and 0.25) by EXAFS at the K-edge of Fe in the energy range from 7000 eV to 7600 eV are presented. Three models of substitutional behavior are considered - the preferential substitution of Fe atoms in: 1) Ni sites, 2) Al sites, 3) both sites. Data analysis was performed with theoretical and experimentally determined scattered photoelectron phases and amplitudes. The results of the EXAFS analysis are consistent with the picture in which most of the Fe atoms substitute Al sites and less than 25% of Fe atoms substitute Ni sites. Alloys with more than 10 at% of Fe showed higher tendency for ordering than those containing less than 10 at% Fe.
Źródło:
Acta Physica Polonica A; 1992, 82, 2; 315-322
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cation Distribution in Fe$\text{}_{3(1-\delta)}$O$\text{}_{4}$ and Low Level Doped Fe$\text{}_{3-x}$M$\text{}_{x}$O$\text{}_{4}$, M=Ti, Zn, Al
Autorzy:
Kąkol, Z.
Kozłowski, A.
Sabol, J.
Metcalf, P.
Honig, J. M.
Powiązania:
https://bibliotekanauki.pl/articles/1861287.pdf
Data publikacji:
1994-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.80.Ga
75.30.Cr
75.50.Gg
Opis:
Systematic magnetic saturation moment and electrical resistivity measurements of the Fe$\text{}_{3(1-\delta)}$O$\text{}_{4}$ and Fe$\text{}_{3-x}$M$\text{}_{x}$O$\text{}_{4}$ (M = Ti, Zn, Al) are presented. Cation distributions for low level doping are proposed and compositional dependencies of the Verwey transition temperature are determined. The latter show striking similarities in their dependence on cation vacancies and dopant concentration for any extraneous cations. These data are the basis for the analysis of the correlation between the presented cations distributions and the Verwey transition.
Źródło:
Acta Physica Polonica A; 1994, 85, 1; 223-227
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical and Mössbauer Effect Study of Magnetic and Electronic Properties of Fe$\text{}_{3}$Al Compound
Autorzy:
Deniszczyk, J.
Frąckowiak, J. E.
Powiązania:
https://bibliotekanauki.pl/articles/1956205.pdf
Data publikacji:
1997-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Bb
75.10.Lp
Opis:
The electronic properties of Fe$\text{}_{3}$Al were determined experimentally, with the use of the Mossbauer spectroscopy, and theoretically. The band structure of the compounds was investigated applying the self-consistent tight-binding linear muffin tin orbital method. The calculated Fermi contact term of hyperfine fields and the isomer shifts are in good agreement with the values resulting from analysis of experimental data. The different kinds of electron transfer estimated on the base of the proposed "additive model" are also strongly supported by calculations.
Źródło:
Acta Physica Polonica A; 1997, 91, 2; 455-458
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of soil acidification on the formation of Fe-, Al-, and Mn-oxides and the stability of soil aggregates
Autorzy:
Rampazzo, N.
Schwertmann, U.
Blum, W.E.H.
Mentler, A.
Powiązania:
https://bibliotekanauki.pl/articles/24830.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
formation
stability
soil
soil acidification
soil aggregate
aggregate stability
oxide
Źródło:
International Agrophysics; 1999, 13, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Band Structure and Magnetic Properties of DO$\text{}_{3}$-Type Fe$\text{}_{3-x}$V$\text{}_{x}$Al Alloys. Super-Cell Approach
Autorzy:
Deniszczyk, J.
Borgieł, W.
Powiązania:
https://bibliotekanauki.pl/articles/2014414.pdf
Data publikacji:
2000-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.20.Eh
71.20.-b
72.15.-v
72.10.-d
Opis:
The electronic structure of Fe$\text{}_{3-x}$V$\text{}_{x}$Al alloys was calculated using the super-cell methodology of alloy modeling. The concentration range of x=0.0÷1.0 was investigated. For a concentration of x=0.0625 the energy based analysis reveals that vanadium prefers to replace the Fe atom at sites with the octahedral coordination. It was found that the iron atoms coordinated by the eight nearest-neighbor Fe atoms preserve their high magnetic moment up to a concentration of x=0.9375 even though the average total magnetic moment goes to zero. The relatively high (≃ -1.0μB) negative magnetic moment of V remains constant up to x≃ 0.5. In the concentration range of x=0.75÷0.9375 the gap at ε$\text{}_{F}$ of the minority density of states is observed while the majority density of states displays a sharp peak structure at the Fermi energy. This feature suggests the heavy-fermion behavior of the Fe$\text{}_{2}$VAl compound.
Źródło:
Acta Physica Polonica A; 2000, 98, 5; 551-554
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the Order on the Structural and Magnetic Properties of Fe-X (X=Al, Si) Alloys with B2 Structure
Autorzy:
Deniszczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/2014406.pdf
Data publikacji:
2000-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.20.Lp
71.15.La
75.50.Bb
75.30.-m
71.15.Fv
Opis:
Previous ab initio super-cell calculations of the magnetic properties of the ordered Fe$\text{}_{1-x}$Al$\text{}_{x}$ alloy in the B2 structure are extended to include the disordered state of the alloy and completed with the calculations for ordered and disordered Fe$\text{}_{1-x}$Si$\text{}_{x}$ alloys. The configurations of the Fe atoms in the anti-site (AS) positions of Fe-X super-cell with the antiferromagnetic order were found. The ground state of Fe$\text{}_{1-x}$Al$\text{}_{x}$ with x≃ 0.3 shows the antiferromagnetic order of the Fe-AS magnetic moments. The concentration dependence of the equilibrium lattice parameter and magnetic moment of Fe$\text{}_{1-x}$X$\text{}_{x}$ in the ordered and disordered state differ qualitatively.
Źródło:
Acta Physica Polonica A; 2000, 98, 5; 543-546
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Annealing Treatment on the Structure and Magnetic Properties of Fe-Al-Cu-Nb-Si-B Alloys
Autorzy:
Pavlík, G.
Matta, P.
Sovák, P.
Zorkovská, A.
Konč, M.
Powiązania:
https://bibliotekanauki.pl/articles/2013354.pdf
Data publikacji:
2000-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.16.Bg
75.50.Kj
75.80.+q
81.40.Rs
Opis:
In this paper we present experimental results on influence of Al content on the structure and saturation magnetostriction of Fe-Al-Cu-Nb-Si-B alloys after heat treatment. Transmission electron microscopy observations confirmed the existence of nanocrystalline structure after annealing at 490°C and 550°C for all samples. The crystallization temperature of FeSi phase and the temperature at which the polycrystalline transformation starts were determined from temperature dependence of electrical resistivity. Aluminium slightly decreases the first crystallization temperature and considerably decreases the saturation magnetostriction in as-quenched state.
Źródło:
Acta Physica Polonica A; 2000, 97, 5; 741-744
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the Local Environment on the Magnetic Properties of the Ordered Fe$\text{}_{1-x}$Al$\text{}_{x}$ Alloy
Autorzy:
Deniszczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/2013232.pdf
Data publikacji:
2000-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.15.La
71.15.Fv
71.20.Lp
75.50.Bb
75.30.-m
Opis:
The electronic and magnetic properties of the ordered binary Fe$\text{}_{1-x}$Al$\text{}_{x}$ alloy with the B2 crystal structure were calculated for Al concentrations x=0.1875-0.5 using the supercell structure. The calculations showed that for increasing Al contents the average magnetization of Fe$\text{}_{1-x}$Al$\text{}_{x}$ falls down rapidly. Upon lowering the unit cell volume, almost all configurations of compositions with x ≥ 0.25 show the abrupt change of magnetic state from the high moment magnetic state to the low moment magnetic state with the moment reduction 0.6-0.8 μ$\text{}_{B}$ per atom. The configurations were found for which the low moment magnetic state solutions with the antiferromagnetic alignment of magnetic moments of Fe atoms at antisite positions are stable.
Źródło:
Acta Physica Polonica A; 2000, 97, 3; 583-586
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic Properties of Iron-Based Amorphous and Nanocrystalline Fe-Zr-X-B (X: Cu, Al) Alloy Films
Autorzy:
Gościańska, I.
Toliński, T.
Ratajczak, H.
Sovák, P.
Dlugoš, R.
Konč, M.
Powiązania:
https://bibliotekanauki.pl/articles/2013068.pdf
Data publikacji:
2000-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.61.Tm
75.50.Bb
Opis:
Thermal stability and magnetic properties of thin films, of a few Fe-based amorphous and nanocrystalline alloys, have been studied. The alloys belong to the class Fe-M-B, whose representatives are: Fe$\text{}_{87}$Zr$\text{}_{4}$Cu$\text{}_{1}$B$\text{}_{8}$, Fe$\text{}_{87}$Zr$\text{}_{7}$B$\text{}_{6}$, and Fe$\text{}_{87}$Zr$\text{}_{7}$Al$\text{}_{1}$B$\text{}_{5}$ and are of particular interest because of their wide variety of magnetic properties. The films were prepared by flash evaporation onto liquid nitrogen cooled substrates. Measurements of the Kerr effect, the Hall effect, and ferromagnetic resonance in the films were carried out as functions of the annealing temperature. It was found that the changes in the coercive field H$\text{}_{c}$, resonance linewidth ΔH$\text{}_{pp}$, effective magnetization M$\text{}_{eff}$, Hall parameters, and resistance were correlated with the structural changes in the studied films.
Źródło:
Acta Physica Polonica A; 2000, 97, 3; 463-466
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Mössbauer and structural study of disordered alloys Fe3-xTixAl (0 < x < 1)
Autorzy:
Brząkalik, K.
Frąckowiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/148880.pdf
Data publikacji:
2003
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Fe2TiAl Heusler phase
Fe-Ti-Al system
Mössbauer spectroscopy
Opis:
A series of the disordered Fe3-xTixAl (x = 0, 0.2, 0.45, 0.55, 0.65, 0.70, 0.75, 1) alloys obtained by arc-melting were studied. Directly after melting the samples were mechanically crashed and in that form examined by the structural and Mössbauer effect methods. The alloys were strongly disordered, but it was possible to identify, apart from Fe-bcc phase, the origins of forming such phases as Fe2TiAl Heusler phase, Fe3Al with DO3 structure, FeAl and FeTi with B2 structure and non-stechiometric Fe2Ti Laves phase with hexagonal C14 structure. For Ti concentration up to x = 0.45, the disordered Fe-bcc phase dominates. For Ti concentration from x = 0.55 to x = 1, the Fe2TiAl phase coexists with FeAl phase (for x = 0.55, 0.65) and with FeTi phase (x = 0.7 and 0.75). In a sample with the nominal Fe2TiAl composition of Fe2TiAl Heusler phase, a non-stoichiometric Fe2Ti Laves phase with hexagonal C14 structure was observed.
Źródło:
Nukleonika; 2003, 48,suppl.1; 13-16
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Crystal order and magnetic properties of Fe2.4V0.6Al alloy studied by magnetostatic and Mössbauer methods
Autorzy:
Popiel, E.
Zarek, W.
Kapuśniak, Z.
Tuszyński, M.
Powiązania:
https://bibliotekanauki.pl/articles/148801.pdf
Data publikacji:
2003
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
magnetic clusters
Mössbauer spectroscopy
relaxation time
Opis:
Performed investigations showed that the magnetic properties of the Fe2.4V0.6Al alloy markedly depend on the degree of atomic order of its cubic structure. The atomically disordered alloy with A2 (bcc) type structure exhibits ferromagnetic properties. Its Mössbauer spectra can be described by the hyperfine field distribution connected with various local environments of Fe atoms. Alloys with B2 (sc) and DO3 (fcc) type structure do not exhibit magnetic transition above 4.2 K. High values of the magnetization and its strongly non-linear variation with magnetic field intensity in a wide temperature range suggest the presence of magnetic iron clusters in these alloys. Superparamagnetic relaxation times of the order of 10-9 s and 5 × 10-8 s correspond to the largest magnetic clusters with a magnetic moment of 4 × 103 žB in B2 and 104 žB in DO3-type structure, respectively. Mössbauer spectra of these alloys confirm lack of the magnetic order and also suggest the presence of the Fe magnetic clusters with those relaxation times. It was shown that the increase of atomic order of the crystal structure causes formation of the Fe magnetic clusters and disappearing of the magnetic order.
Źródło:
Nukleonika; 2003, 48,suppl.1; 65-70
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Adding of V and Co Atoms on the Spin Glass Transition Temperature of Fe$\text{}_{0.7-x}$M$\text{}_{x}$Al$\text{}_{0.30}$ Alloys
Autorzy:
Azez, K. A.
Powiązania:
https://bibliotekanauki.pl/articles/2035747.pdf
Data publikacji:
2003-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Bb
Opis:
Magnetization measurements on zero field cooled (M$\text{}_{ZFC}$) and field cooled (M$\text{}_{FC}$) with temperature T were made on Fe$\text{}_{0.7-x}$M$\text{}_{x}$Al$\text{}_{0.30}$ alloys (where M = Co or M = V). Compared to Co and V free alloy Fe$\text{}_{0.7}$Al$\text{}_{0.30}$, our results revealed that an addition of small amount of M = Co with 0≤ x≤0.10 shows linear decrease in the transition temperature T$\text{}_{f}$ as x increases. Addition of small amount of M = V with 0≤ x≤0.1 shows gradual decrease in T$\text{}_{f}$ with increasing x. The relative changes in T$\text{}_{f}$ show that an addition of V atoms is of more significance than addition of Co atoms. There is a twofold decrease which could be attributed to the ferromagnetic nature of Co atoms and to the random fields.
Źródło:
Acta Physica Polonica A; 2003, 103, 5; 471-476
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 182

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies