Browsing by Author F elix, L. León

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  • Characterization and magnetic properties of hollow α-Fe2O3 microspheres obtained by sol gel and spray roasting methods.pdf.jpg
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  • Authors: Valladares, L. De Los Santos; Domínguez, A. Bustamante; F elix, L. León; Kargin, J.B; Mukhambetov, D.G; Kozlovskiy, A.L; Moreno, N.O; Santibanẽz, J. Flores; Cabrera, R. Castellanos; Barnes, C.H.W (2019)

  • In this work, we characterize the hollow hematite (a-Fe2O3) micro spheres obtained by two nontemplate techniques: i) sol gel and ii) spray roasting process. Both techniques allow the production of high yield hollow hematite spheres up to 100 g for the case of sol gel and up to 500 kg for the case of spray roaster process. The samples were characterized by X-ray diffraction, scanning electron microscopy and M€ossbauer spectroscopy. The results indicate nearly uniform hollow spheres with diameters of around 1e1.5 mm and consisting of polycrystalline hematite. The Mӧssbauer spectroscopy reveals the signal change of quadrupole shift values evidencing the occurrence of the Morin tran...

Browsing by Author F elix, L. León

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 1 of 1
  • Characterization and magnetic properties of hollow α-Fe2O3 microspheres obtained by sol gel and spray roasting methods.pdf.jpg
  • Article


  • Authors: Valladares, L. De Los Santos; Domínguez, A. Bustamante; F elix, L. León; Kargin, J.B; Mukhambetov, D.G; Kozlovskiy, A.L; Moreno, N.O; Santibanẽz, J. Flores; Cabrera, R. Castellanos; Barnes, C.H.W (2019)

  • In this work, we characterize the hollow hematite (a-Fe2O3) micro spheres obtained by two nontemplate techniques: i) sol gel and ii) spray roasting process. Both techniques allow the production of high yield hollow hematite spheres up to 100 g for the case of sol gel and up to 500 kg for the case of spray roaster process. The samples were characterized by X-ray diffraction, scanning electron microscopy and M€ossbauer spectroscopy. The results indicate nearly uniform hollow spheres with diameters of around 1e1.5 mm and consisting of polycrystalline hematite. The Mӧssbauer spectroscopy reveals the signal change of quadrupole shift values evidencing the occurrence of the Morin tran...