rasool amini | Shiraz University of Technology (original) (raw)
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European Centre for Training & Research in Earthquake Engineering
Universidad Michoacana de San Nicolás de Hidalgo
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Papers by rasool amini
Iranian Journal of Materials Science and Engineering, 2005
Journal of Alloys and Compounds
Journal of Alloys and Compounds
Materials Research Express
Journal of Alloys and Compounds
Journal of Alloys and Compounds
Journal of Alloys and Compounds, 2016
Surface and Coatings Technology, 2016
Materials & Design, 2010
It has been reported that nitrogen atoms affect the elastic constants of austenitic stainless ste... more It has been reported that nitrogen atoms affect the elastic constants of austenitic stainless steels differently. In this study, the effect of nitrogen content on the compressive Young's modulus of nanostructured 18Cr-12Mn austenitic stainless steels is evaluated. The alloys are processed by mechanical alloying under a nitrogen gas atmosphere and subsequent sintering. The results show that by increasing the nitrogen concentration from 0.99 to 2.31 wt.%, the modulus progressively decreases. This is attributed to an increase in the volume of the unit cells and the weakening of the metallic bonds.
Materials Research Bulletin, 2015
ABSTRACT In present work, in order to study the effects of synthesis techniques on dielectric pro... more ABSTRACT In present work, in order to study the effects of synthesis techniques on dielectric properties, the BNBT lead-free piezoceramics with (Bi0.5Na0.5)0.94Ba0.06TiO3 stoichiometry (called as BNBT6) were synthesized by mechanical alloying (MA) and conventional mixed oxides methods. The structural, microstructural, and dielectric properties were carried out by X-ray diffractometer (XRD), scanning electron microscope (SEM), and impedance analyzer LCR meter, respectively. Based on results, the density of MA samples is considerably higher than conventional samples owning to smaller particles size and more uniformity of particle shape of MA samples. Moreover, the dielectric properties of MA samples are comparatively improved in which the dielectric loss of these samples is almost 27% less than conventional ones. Furthermore, MA samples exhibit obviously higher dielectric permittivity and Curie temperature compared to the conventional samples.
Iranian Journal of Materials Science and Engineering, 2005
Journal of Alloys and Compounds
Journal of Alloys and Compounds
Materials Research Express
Journal of Alloys and Compounds
Journal of Alloys and Compounds
Journal of Alloys and Compounds, 2016
Surface and Coatings Technology, 2016
Materials & Design, 2010
It has been reported that nitrogen atoms affect the elastic constants of austenitic stainless ste... more It has been reported that nitrogen atoms affect the elastic constants of austenitic stainless steels differently. In this study, the effect of nitrogen content on the compressive Young's modulus of nanostructured 18Cr-12Mn austenitic stainless steels is evaluated. The alloys are processed by mechanical alloying under a nitrogen gas atmosphere and subsequent sintering. The results show that by increasing the nitrogen concentration from 0.99 to 2.31 wt.%, the modulus progressively decreases. This is attributed to an increase in the volume of the unit cells and the weakening of the metallic bonds.
Materials Research Bulletin, 2015
ABSTRACT In present work, in order to study the effects of synthesis techniques on dielectric pro... more ABSTRACT In present work, in order to study the effects of synthesis techniques on dielectric properties, the BNBT lead-free piezoceramics with (Bi0.5Na0.5)0.94Ba0.06TiO3 stoichiometry (called as BNBT6) were synthesized by mechanical alloying (MA) and conventional mixed oxides methods. The structural, microstructural, and dielectric properties were carried out by X-ray diffractometer (XRD), scanning electron microscope (SEM), and impedance analyzer LCR meter, respectively. Based on results, the density of MA samples is considerably higher than conventional samples owning to smaller particles size and more uniformity of particle shape of MA samples. Moreover, the dielectric properties of MA samples are comparatively improved in which the dielectric loss of these samples is almost 27% less than conventional ones. Furthermore, MA samples exhibit obviously higher dielectric permittivity and Curie temperature compared to the conventional samples.