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Local structure study of Fe dopants in Ni-deficit Ni3Al alloys
(Journal of Alloys and Compounds, 2015)
The local electronic and magnetic structure, hyperfine interactions, and phase composition of polycrystalline Ni-deficient Ni3-xFexAl (x = 0.18 and 0.36) were investigated by means of Fe-57 Mossbauer spectroscopy. The ...
Magnetic properties of trivalent Sm ions in SmxY2-xO3
(Journal of Alloys and Compounds, 2009)
Polycrystailline samples of the cubic SmxY2-xO3 solid solutions (x = 0 2, 0.5. 1 0, 1 4, 1.7 and 2.0) were prepared and analyzed by the XRD and magnetic susceptibility measurements. Random distribution of Sm3+ ions between ...
Electric field gradients at Ta and Cd in Ti(2)Pd compound
(Journal of Alloys and Compounds, 2009)
The hyperfine quadrupole interaction parameters and their temperature dependences for (181)Ta and (111)Cd probes in Ti(2)Pd compound were determined experimentally by means of the perturbed angular correlation (PAC) ...
Influence of mechanical activation on the structure of ultrafine BaTiO3 powders
(Journal of Alloys and Compounds, 2009)
The influence of mechanical activation in a planetary ball mill on the change of the structure of BaTiO3 powders has been investigated. The particle size distribution of the nonactivated and activated samples was measured ...
Study of non-isothermal crystallization of Eu3+ doped Zn2SiO4 powders through the application of various macrokinetic models
(Journal of Alloys and Compounds, 2014)
Various macrokinetic models (Avrami, Evans, Tobin, Malkin, Dietz, Nakamura, and modified first-order models) were applied to describe non-isothermal crystallization kinetics of Eu3+ doped zinc silicate powders prepared via ...
Morphological, structural and magnetic properties of alpha-Fe2O3 nanoparticles in an amorphous alumina matrix obtained by aqueous combustion method
(Journal of Alloys and Compounds, 2009)
We report on morphological, structural and magnetic properties of alpha-Fe2O3 nanoparticles in an amorphous alumina matrix synthesized by aqueous combustion method. The sample was characterized by X-ray powder diffraction ...
Structural, mechanical and tribological properties of A356 aluminium alloy reinforced with Al2O3, SiC and SiC plus graphite particles
(Journal of Alloys and Compounds, 2010)
Particulate composites with A356 aluminium alloy as a matrix were produced by compocasting process using ceramic particles (Al2O3, SiC) and graphite particles. The matrix alloy and the composites were thermally processed ...
Unusual magnetic properties of NiO nanoparticles embedded in a silica matrix
(Journal of Alloys and Compounds, 2011)
We have observed unusual magnetic properties of NiO (nickel oxide) nanoparticles embedded in a silica matrix. The sample was synthesized by a method based on the contribution of sol-gel and combustion processes. X-ray ...
Influence of heavy rare earth ions substitution on microstructure and magnetism of nanocrystalline magnetite
(Journal of Alloys and Compounds, 2009)
In this work we report results on the influence of heavy rare earth ions substitution on microstructure and magnetism of nanocrystalline magnetite. A series of Fe(2.85)RE(0.15)O(4) (RE = Gd, Dy, Ho, Tm and Yb) samples have ...
Core and shell structure of ytterbium sesquioxide nanoparticles
(Journal of Alloys and Compounds, 2010)
This paper reports results concerning the crystal structure of core and shell as well as microstructure of 25 nm-ytterbium sesquioxide (Yb(2)O(3)) nanoparticles synthesized using a unique method based on thermal decomposition ...