Results 11 to 20 of about 47,537 (199)

Preparation of strontium hexaferrite magnets from celestite and blue dust by mechanochemical route [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2008
In the present investigation celestite (natural ore of strontium) and blue dust (iron ore fines) have been used for the preparation of strontium hexaferrite powder. The mechanical alloying process has been adopted to prepare strontium hexaferrite powder.
Tiwary R.K., Narayan S.P., Pandey O.P.
doaj   +3 more sources

Thermal History Dependent Al Distribution in Aluminum Substituted Strontium Hexaferrite. [PDF]

Materials (Basel), 2020
Single crystals of aluminum substituted strontium hexaferrite SrFe12–xAlxO19 were grown from sodium oxide based flux. The substitution level aimed for was x = 1.2. Annealing experiments performed on single crystals show that the Al distribution on the five iron sites of the hexaferrite structure depends on the annealing time at 900 °C. Single crystal X-
Häßner M, Vinnik DA, Niewa R.
europepmc   +9 more sources

Effect of ionic substitutions on the magnetic properties of strontium hexaferrite: A first principles study

AIP Advances, 2017
We investigated the effect of substitution of various ions at the Fe sites on magnetic properties of strontium hexaferrite (SrFe12O19) using first principles method based on density functional theory.
Vivek Dixit, Seong-Gon Kim, Jihoon Park, Yang-Ki Hong   +3 more
doaj   +2 more sources

The influence of the particle size on rheological properties of magneto fluidized bed of strontium hexaferrite [PDF]

E3S Web of Conferences
Powder metallurgy processes are in general less polluting and more sustainable than the traditional mechanical manufacturing. In order to organize technological processes with the ferromagnetic powders, one usually applies special methods to change the ...
Egorov Ivan, Egorov Nikolay, Egorova Svetlana   +2 more
doaj   +3 more sources

Green synthesis and characterization of hexaferrite strontium-perovskite strontium photocatalyst nanocomposites [PDF]

Main Group Metal Chemistry, 2020
This study presents a preparation of SrFe12O19– SrTiO3 nanocomposite synthesis via the green auto-combustion method. At first, SrFe12O19 nanoparticles were synthesized as a core and then, SrTiO3 nanoparticles were prepared as a shell for it to ...
Karahroudi Zahra Hajian, Hedayati Kambiz, Goodarzi Mojtaba   +2 more
doaj   +2 more sources

Obtaining of Nanostructured Powders of Barium and Strontium Hexaferrite by the Polymer Precursor Method [PDF]

Журнал нано- та електронної фізики, 2015
Studied the possibility of obtaining by precursors in the polymer nanostructured powders of barium hexaferrite BaFe12O19 and strontium hexaferrite SrFe12O19.
V.G. Kostishyn, A.V. Timofeev, D.N. Chitanov   +2 more
doaj   +1 more source

Aligned Permanent Magnet Made in Seconds–An In Situ Diffraction Study

Advanced Electronic Materials
The synthesis of a strontium hexaferrite magnet is studied using in situ synchrotron powder X‐ray diffraction (PXRD) with a 16‐ms time resolution. The precursor material is cold compacted shape‐controlled goethite and strontium carbonate.
Amalie P. Laursen, Jens P. Frandsen, Priyank Shyam, Mathias I. Mørch, Frederik H. Gjørup, Harikrishnan Vijayan, Mads R. V. Jørgensen, Mogens Christensen   +7 more
doaj   +2 more sources

Tuning the electromagnetic and magnetic response of SrFe12O19 by Dy–Ce co-substitution for X-band microwave absorption [PDF]

RSC Advances
Dy–Ce co-substituted strontium hexaferrite, SrDyxCexFe12−2xO19 (x = 0.00–0.10), was synthesized by the sol–gel auto-combustion method and investigated as an X-band microwave attenuation material.
Shreepad S. Atkare, S. B. Deshmukh, Vinod N. Dhage, Akash V. Fulari, Heba Taha Mohmmed Abdelghani, Sagar E. Shirsath, Maheshkumar L. Mane   +6 more
doaj   +2 more sources

Magneto-Structural Characterization of Strontium Substituted Lead Hexaferrite [PDF]

Journal of Superconductivity and Novel Magnetism, 2012
In this work, the magnetic and structural properties of the system Pb1−x Sr x Fe12O19 (x=0.1,0.3,0.5,0.7 and 0.9) are reported. The samples were prepared by the traditional ceramic method. All the compounds are isostructural with the strontium hexaferrite (SrFe12O19).
A. L. Guerrero-Serrano, S. A. Palomares-Sánchez, M. Mirabal-García, J. A. Matutes-Aquino   +3 more
openaire   +2 more sources

Structure and Magnetic Properties of Co-Substituted Strontium Hexaferrite

Advanced Materials Research, 2014
The strontium hexaferrite (SrFe12O19) and Co-substituted strontium hexaferrite (SrCoFe11O19) were prepared by ceramic method. The milled mixture of Fe2O3, SrCO3 and CoO powders were calcined at 1100°C and pellets sintered at 1300°C in air. The crystal structure, morphology and magnetic properties of samples have been investigated by X-ray diffraction ...
Pannipa Chaya, Tula Jutarosaga, Wandee Onreabroy   +2 more
openaire   +2 more sources