Following crystallite morphology and magnetization during sintering of compacted strontium hexaferrite nano-platelets
The aim of the experiment is to investigate the changes in nano-crystallites size and morphology during high-temperature sintering of cold-pressed pellets of strontium hexaferrite. The subjects has scientific value as a crystallographic materials study, and in industrial applications of permanent magnet production. During the sintering of a pellet, the crystallites fuse together to form a more dense and sturdy pellet. This is accompanied by an unwanted crystallite growth, as the enhanced properties associated with nano-powders may be lost. To optimize the sintering process it is important to understand the changes in crystallite morphology as they occur. Neutron diffraction allows for entire pellets to be investigated, and the D20 instrument at ILL can provide the necessary time resolution to follow the sintering process in situ. The results will prove valuable for optimizing industrial manufacturing techniques.
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CHRISTENSEN Mogens; Jakob Voldum Ahlburg; DE JULIAN FERNANDEZ Cesar; GJORUP Frederik; Thomas C. Hansen; HOELSCHER Jennifer and MORCH Mathias. (2019). Following crystallite morphology and magnetization during sintering of compacted strontium hexaferrite nano-platelets. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-04-146
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