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Strona główna » Instytut » Pracownicy » Mieczysław Budzyński

prof. dr hab. Mieczysław Budzyński

Zakład

Zakład Metod Jądrowych

Stanowisko:

profesor zwyczajny

Kontakt:

pokój: 40, 601
telefon: (081) 537-61-93, (081) 537-61-88
e-mail: mieczyslaw.budzynski@umcs.pl

Specjalność naukowa:

fizyka doświadczalna

Funkcje pełnione w IF UMCS:

Kierownik Zakładu
Dyrektor Instytutu Fizyki 2013-2017

Publikacje: Ukryj abstrakty

  1. M. Budzyński,V. I. Mitsiuk,V. V. Ryzhkovskii,Z. Surowiec,T. M. Tkachenko, Preparation and properties of Mn1.5-xCuxSb and Mn 1.5-xZnxSb solid solutions with the B8 structure, Inorganic Materials, 64(), 2010, 1049-1053

  2. Z. Surowiec,M. Wiertel,R. Zaleski,M. Budzyński, Positron annihilation study of iron oxide nanoparticles in mesoporous silicate MCM-41 template, Nukleonika, 55(), 2010, 91-96

  3. A. V. Tsvyashchenko,A. V. Nikolaev,A. I. Velichkov,A. V. SalamatinL. N. Fomicheva,1G. K. Ryasny,A. A. Sorokin,O. I. Kochetov,M. Budzyński,K. H. Michel, Lowering of the spatial symmetry at the γ→α phase transition in cerium, Physical Review B, B82(), 2010, 092102 (1-4)

  4. A. V. Tsvyashchenko,A. V. Nikolaev,A. I. Velichkov,A. V. Salamatin,L. N. Fomicheva,G. K. Ryasny,A. A. Sorokin,O. I. Kochetov,M. Budzyński, Nuclear 111Cd probes detect a hidden symmetry change under the γ→ α transition in cerium considered isostructural for 60 Years, Journal of Experimental and Theoretical Physics, 111(), 2010, 626-633

  5. Kiszczak, K. Budzyński, M., Komora dyfuzyjna, Puławy, Materiały konferencyjne „Fizyka wysokich energii w edukacji szkolnej”, (), 2008,

  6. Tsvyashchenko, A.V. Fomicheva, L.N. Brudanin, V.B. Kochetov, O.I. Salamatin, A.V. Velichkov, A. Wiertel, M. Budzynski, M. Sorokin, A.A. Ryasniy, G.K. Komissarova, B.A. Milanov, M., Cd-111 time-differential perturbed angular correlation study of pressure-induced valence changes in YbAl2, Physical Review B, 76(4), 2007, art. no. 045112

    Abstract:
    The quadrupole interaction at Cd-111 impurity nuclei in the intermediate-valence compound YbAl2 has been measured under pressure up to 80 kbar by the time-differential perturbed angular correlation spectroscopy. It was found that the quadrupole frequency nu(Q) measured on the Cd-111 nuclei located at the Al sites in YbAl2 varies nonlinearly and increases by almost four times with the pressure increase up to 80 kbar. A linear correlation between the mean Yb valence, derived from Yb L-3 OFY-XAS and RXES measurements, and the electric field gradient (the quadrupole frequency nu(Q)=eQV(zz)/h) has been observed. The quadrupole frequencies on Cd-111 in the GdAl2, YbAl3, TmAl3, and CaAl2 compounds have been also measured. The possibility of determining the valence of Yb in the Yb compounds with p metals from the relation nu(Q)(upsilon(P))=nu(2)+(nu(3)-nu(2))upsilon(P) has been considered.

  7. Budzynski, P. Youssef, A.A. Surowiec, Z. Paluch, R., Nitrogen ion implantation for improvement of the mechanical surface properties of aluminum, Vacuum, 81(10), 2007, 1154-1158

    Abstract:
    The results of the surface treatment of commercial aluminum by nitrogen ion implantation at 120 keV and implanted fluences ranging from 3 X 10(17) to 1.1 x 10(18) ions/cm(2) are reported. The treatment was found to lead to the formation of the hexagonal phase AIN, a decrease in strain and an increase of crystallite sizes. The modification of the surface layer so produced was thought to be a cause of a measured increase in surface microhardness and corresponding decrease in friction coefficient and wear measured in pure methanol. Oxygen found in the surface layers was also thought to play a significant role in determining tribological performance. (c) 2007 Published by Elsevier Ltd.

  8. Surowiec, Z. Goworek, J. Ryczkowski, J. Budzyński, M. Wiertel, M. Sarzyński, J., Mössbauer study of magnetite nanowire in MCM-41 mesoporous silica templates, Nukleonika, 52(), 2007, S33-S36

  9. Wiertel, M. Surowiec, Z. Sarzyński, J. Budzyński, M. Beskrovny, A.I., Structural and magnetic investigations of Sc(Fe1-x Nix)2 compounds by means of Mössbauer effect and neutron diffraction, Nukleonika, 52(), 2007, S71-S75

  10. Oleszak, D. Jartych, E. Antolak, A. Pekala, M. Szymanska, M. Budzynski, M., Structure, hyperfine interactions and magnetization studies of mechanically alloyed Fe50Ge50 and Fe62Ge38, Journal of Alloys and Compounds, 400(1-2), 2005, 23-28

    Abstract:
    X-ray diffraction, Mossbauer spectroscopy and magnetization measurements were used to study the structure and some magnetic properties of Fe50Ge50 and Fe62Ge38 prepared by mechanical alloying from the elemental powders. In both cases in the early stages of milling the intermediate paramagnetic FeGe2 phase was formed. The mechanical alloying process of Fe50Ge50 resulted in the formation of the paramagnetic FeGe (B20) phase with an average crystallite size of about 15 nm. In the case of the Fe62Ge38, the ferromagnetic Fe5Ge3 (beta) phase with a Curie temperature of about 430 K was obtained. The average crystallite size was about 9 nm. The average hyperfine magnetic field of about 16 T allowed it to determine that more than four germanium atoms exist in the nearest environment of the Fe-57 isotopes in the Fe5Ge3 phase. (c) 2005 Elsevier B.V. All rights reserved.

  11. Surowiec, Z. Sarzynski, J. Budzynski, M. Wiertel, M., Effect of the substitution of Ti for Y on structural properties and hyperfine interactions in Y1-xTixFe2 compounds, Nukleonika, 49(), 2004, S17-S21

    Abstract:
    Room temperature Fe-57 Mossbauer spectroscopy and X-ray diffraction measurements are reported for a series of Y1- xTixFe2 polycrystalline samples. Our research shows that except for x = 0 and x = 1, the samples are a mixture of two C15 and C14 pseudobinary Laves phases. Some Ti atoms occupy the crystallographic positions 8a characteristic of the Y atoms in the cubic C15 structure while the rest of them form the hexagonal C14 phase. However, the lattice constant dependencies on concentration x suggest the occurrence of Y atoms in the positions 4f characteristic of Ti atoms in the hexagonal C14 structure. The partial substitution of Ti atoms for Y atoms is responsible for the HMF changes in the cubic phase. Contrary to the situation taking place in the Zr1-xTixFe2 compounds, magnetic arrangement in the pseudobinary hexagonal phases is not observed at room temperature.

  12. Jartych, E. Oleszak, D. Pekala, M. Sarzynski, J. Budzynski, M., Structure and magnetic properties of mechanically synthesized nanocrystalline Co52Fe26Ni22 alloy, Journal of Materials Science, 39(16-17), 2004, 5385-5388

    Abstract:
    Mechanical alloying method was used to prepare nanocrystalline Co52Fe26Ni22 alloy. X-ray diffraction was applied for determination of the structure of the alloy. During milling Co- based solid solution with f.c.c. lattice was formed. After 80 h of synthesis the lattice parameter was equal to 0.3575 nm while the average grain sizes and the mean level of internal strains were about 24 nm and 0.72%, respectively. Mossbauer spectroscopy was adopted to characterize the local atomic order of the Co52Fe26Ni22 alloy. In the nearest neighbourhood of Fe- 57 isotopes there are at least six Co atoms, three Ni atoms and three Fe atoms giving the hyperfine magnetic field equal to 32.45(1) T. Magnetization measurements allowed to determine the effective magnetic moment of the Co52Fe26Ni22 alloy to be equal to 1.63 mu(B) per formula unit. Curie temperature of the obtained alloy is equal to 1000 K. (C) 2004 Kluwer Academic Publishers.

  13. Budzynski, M. Sarzynski, J. Wiertel, M. Surowiec, Z., Effect of Sc substitution for Y on structural properties and hyperfine interactions in Y1-xScxFe2 compounds, Nukleonika, 48(), 2003, S79-S83

    Abstract:
    Measurements of X-ray diffraction and Mossbauer effect were made on a series of Y1-xScxFe2 polycrystalline samples (x = 0.0, 0.2, 0.5, 0.7, 0.8, 1.0). It was found that the system has the cubic MgCu2 structure except for x = 1.0 where hexagonal MgZn2 structure type is stable. The lattice constant decreases with increasing x. The results of Mossbauer effect study at room temperature show that the easy axes of magnetization remain in the <111> direction for the cubic samples and <100> for the hexagonal one. Curie temperatures T-C were determined from temperature dependence of the hyperfine magnetic fields. The concentration dependence of the hyperfine fields and T-C show similar trends, exhibiting a maximum at x = 0.8. The magnetic and structural behaviour show that, in spite of being isoelectronic, the substitution of Y by Sc induces clear changes in the structural and magnetic properties of the compounds under investigation.

  14. Jartych, E. Jalochowski, M. Budzynski, M., Influence of the electrodeposition parameters on surface morphology and local magnetic properties of thin iron layers, Applied Surface Science, 193(1-4), 2002, 210-216

    Abstract:
    Iron layers with thickness of 70-200 nm were prepared by electrodeposition on the polycrystalline Cu substrate at different parameters of the electrolysis. The surface morphology of the iron layers and their local magnetic properties were studied using scanning tunneling microscopy (STM) and conversion electron Mossbauer spectroscopy (CEMS). STM studies revealed the granular structure of the surface of the electrodeposited iron layers with the roughness depending on the temperature of the bath, pH value and the current density. The influence of these electrodeposition parameters on the thickness of the iron layers became manifest in their magnetic anisotropy, as seen by CEMS. (C) 2002 Elsevier Science B.V. All rights reserved.

  15. Jartych, E. Karolus, M. Oleszak, D. Zurawicz, J. K. Sarzynski, J. Budzynski, M., Structure and hyperfine interactions in mechanosynthesized iron-molybdenum alloys, Journal of Alloys and Compounds, 337(), 2002, 69-75

    Abstract:
    X-ray diffraction and Mossbauer spectroscopy were used to study the structure and hyperfine interactions in Fe80Mo20 and Fe50M50 prepared by mechanical alloying. Two solid solutions, i.e. Fe(Mo) and Mo(Fe) with b.c.c. lattice were formed during milling of Fe80Mo20. Mossbauer spectra revealed different magnetic arrangements in these solid solutions. In the case of Fe50Mo50 no amorphisation was observed, as literature data suggest. During mechanosynthesis of Fe50Mo50 a paramagnetic Mo(Fe) solid solution was probably formed. (C) 2002 Elsevier Science B.V. All rights reserved.

  16. Budzynski, M. Sarzynski, J. Surowiec, Z. Wiertel, M., Mossbauer and X-ray diffraction studies of Zr1-xTixFe2 Laves phase compounds, Acta Physica Polonica A, 100(5), 2001, 717-722

    Abstract:
    Mossbauer spectroscopy of Fe-57 and X-ray diffraction measurements in the Zr1-xTixFe2 phase have been made. Our X-ray diffraction spectra revealed that the samples have the cubic C15 crystal structure for low Ti concentration and the hexagonal C14 structure for high Ti concentration. In the range of 0.2 less than or equal to x less than or equal to 0.5 a mixture of both structures occurs. The investigated compounds are paramagnetic at RT for x > 0.80 and magnetic for x less than or equal to 0.8. In the magnetic samples we found four different values of hyperfine magnetic fields. The presence of two hyperfine magnetic fields in the C14 phase suggests magnetic moments on Fe atoms at 2a sites. The obtained epsilon (Q) vs. the x dependence indicates the spin canted antiferromagnetic structure in the hexagonal phase in the range of 0.2 less than or equal to x less than or equal to 0.8.

  17. Jartych, E. Zurawicz, J. K. Oleszak, D. Pekala, M. Sarzynski, J. Budzynski, M., Magnetic properties and structure of nanocrystalline Fe70Al30 alloy prepared by mechanosynthesis, Journal of Magnetism and Magnetic Materials, 186(3), 1998, 299-305

    Abstract:
    Nanocrystalline powder samples of Fe70Al30 alloy were prepared by the mechanical alloying method. X-ray diffraction, Mossbauer and magnetic studies indicated that the ferromagnetic solid solution with BCC structure was formed with an increase in milling time. The magnetic ordering temperature T-c of the nanocrystalline mechanically alloyed Fe70Al30 was larger than that of the corresponding alloy prepared by rapid quenching, while the average magnetic moment per Fe atom in the investigated milling alloy was smaller than in cold-worked Fe70Al30 alloy. The high value of the hyperfine magnetic field of about 29 T measured in the Fe70Al30 alloy was explained in the frame of a local environment model, where five or more Fe atoms in the nearest neighbourhood of Fe-57 constitute the most probable configuration. (C) 1998 Elsevier Science B.V. All rights reserved.

  18. Sarzynski, J. Wiertel, M. Budzynski, M., Influence of the local environment on the hyperfine interactions in Zr(Fe1-xCox)(2) compounds, Hyperfine Interactions, 108(4), 1997, 381-387

    Abstract:
    Ferromagnetic Laves phase compounds Zr(Fe1-xCox)(2) have been investigated by means of the Mossbauer effect (Fe-57) and by the time-dependent perturbed angular correlation of gamma-rays (Ta-181) technique. It has been concluded from ME experiments that by exchange of Fe by Co in the nearest neighbour shell of the nuclear probe the hyperfine magnetic field acting on Fe-57 decreases by 10-12 kG. The analysis of the TDPAC experiments revealed that two different hyperfine magnetic fields: B- 1(hf)(Ta) approximate to 61 kG and B-2(hf)(Ta) approximate to 88 kG act on the Ta-181 nuclei. Both have a negative sign.


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