In-situ PXRD Study on the Annealing of SrFe12O19 Nano Particles

Frederik Gjørup, Matilde Saura-Múzquiz, Mogens Christensen

Research output: Contribution to conferencePosterCommunication

Abstract

Nano sized strontium hexaferrite is synthesized using a hydrothermal flow synthesis, at temperature and pressure above waters critical point. The nano particles are hexagonal platelets, with the easy axis of magnetization along the short c-axis of the platelet. The nano powders are normally pressed and annealed to form mechanically stable pellets. This study uses In-situ Powder X-Ray Diffraction (PXRD) to examine the particle growth during annealing of the powder, with emphasis on the ratio between the axes of the platelets (a/c-ratio). By applying an external magnetic field before annealing, the particles will align along the field lines of the external magnet, and the contact surfaces along the c-axis should increase. It will be examined whether the external magnetic field increases the growth along the c-axis relative to the a/b-axis, compared to annealing without prior magnetization.
Translated title of the contributionIn-situ PXRD Studie af Udglødningen af SrFe12O19 Nano Partikler
Original languageEnglish
Publication date26 May 2016
Number of pages1
Publication statusPublished - 26 May 2016
EventDanscatt Annual meeting 2016 - University of Copenhagen, Faculty of Health and Medical Sciences, Copenhagen , Denmark
Duration: 26 May 201627 May 2016

Conference

ConferenceDanscatt Annual meeting 2016
LocationUniversity of Copenhagen, Faculty of Health and Medical Sciences
Country/TerritoryDenmark
CityCopenhagen
Period26/05/201627/05/2016

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