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Mostrando ítems 111-120 de 138
Artículo
Microstructural Evolution Characterization of Fe-Nb-B Ternary Systems Processed by Ball Milling
(Taylor & Francis, 2009)
Fe-Nb-B alloys prepared by ball milling can undergo a complex microstructural evolution during milling. In order to overcome the limitations imposed by traditional X-ray bulk analysis, a comprehensive multi-technique ...
Artículo
Plastic deformation at high temperatures of pure and Mn-doped GaSb
(2001)
In this work the plastic behavior of GaSb and Mn-doped GaSb at high temperature has been analyzed. Several experiments at different constant load and temperatures around 500 °C were carried out. The parameters used in the ...
Artículo
Artículo
Detection of the onset of nanocrystallization by calorimetric and magnetic measurements
(AIP Publishing, 2005-01-24)
It is generally accepted that measurements of the magnetic properties are more sensitive than measurements of the enthalpy changes in the detection of the onset of crystallization of ferromagnetic phases emerging from a ...
Artículo
Influence of Co addition on the magnetocaloric effect of FeCoSiAlGaPCB amorphous alloys
(2006)
The FeCoSiAlGaPCB alloys can be prepared as bulk amorphous materials, with outstanding mechanical properties and increased electrical resistivity. These features can be beneficial for their application as a magnetic ...
Artículo
The cluster model: A simulation of the aerogel structure as a hierarchically-ordered arrangement of randomly packed spheres
(Springer Nature, 2005)
A new structural model based on the premises widely used for describing the structure of aerogels has been introduced. These structures have been described as an assemblage of randomly-packed spheres in several ...
Artículo
Field dependence of the magnetocaloric effect in Gd and (Er 1-xDyx)Al2: Does a universal curve exist?
(2007-07-27)
The field dependence of the magnetic entropy change of ferromagnetic lanthanide- based materials has been studied. The recently proposed master curve for the field dependence of the magnetocaloric effect of Fe-based amorphous ...
Artículo
SANS study of hybrid silica aerogels under "in situ" uniaxial compression
(Springer Nature, 2008)
We have modified the inorganic silica network of aerogels with polydimethylsiloxane (PDMS), a hydroxyl-terminated polymer, to obtain an organic modified silicate (ORMOSIL). Reactions were assisted by high-power ultrasounds. ...
Artículo
Mössbauer study of FeCoSiAlGaPCB amorphous alloys
(2004)
A Mössbauer spectrometry and magnetic study have been performed on FeCoSiAlGaPCB amorphous alloys in order to get information about the variations in the atomic short range order with the substitution of Fe by Co. The ...
Artículo
Influence of the demagnetizing field on the determination of the magnetocaloric effect from magnetization curves
(AIP Publishing, 2009-02-12)
The influence of the demagnetizing factor (N) on the magnetic entropy change (DSM) curves is studied for materials with a second order phase transition. For this purpose, a soft magnetic amorphous ribbon is measured for ...