Enhancement of magnetic properties through morphology control of SrFe₁₂O₁₉ nanocrystallites.

ABSTRACT: Nanocrystallites of the permanent magnetic material SrFe₁₂O₁₉ were synthesised using a conventional sol-gel (CSG) and a modified sol-gel (MSG) synthesis route. In the MSG synthesis, crystallite growth takes place in a solid NaCl matrix, resulting in freestanding nanocrystallites, as opposed to the CSG synthesis, where the produced nanocrystals are strongly intergrown. The resulting nanocrystallites from both methods exhibit similar intrinsic magnetic properties, but significantly different morphology and degree of aggregation. The nanocrystallites were compacted into dense pellets using a Spark Plasma Sintering (SPS) press, this allows investigating the influence of crystallite morphology and the alignment of the nanocrystallites on the magnetic performance. A remarka

SUBMITTER: Eikeland AZ 

PROVIDER: S-EPMC5943258 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature