Novel "Flash Spark Plasma Sintering" method for the rapid fabrication of nanostructured and anisotropic rare-earth lean permanent magnetic materials

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Authors

Colleges, School and Institutes

External organisations

  • Queen Mary Univ London

Abstract

In the field of ceramics processing “Flash Sintering (FS)” has generated considerable interest due to its ability to produce highly dense materials from green compacts in a matter of seconds [1]. It has been demonstrated that FS can be performed in a Spark Plasma Sintering (SPS) furnace [2]. The “Flash Spark Plasma Sintering (FSPS)” configuration can be used to perform ultra-rapid sinter-forging and sinter-annealing; and therefore represents a new route for the production of
nanostructured and textured materials. We present the results of an investigation into the FSPS of Heavy Rare Earth (HRE) free Nd-Fe-B based materials (patent pending). It is shown that fully dense, highly anisotropic, nanostructured magnetic materials can be produced from isotropic powders in processing times as little as 10 seconds. The influence of the FSPS processing parameters on the physical and magnetic properties will be discussed in relation to multiscale microstructural
investigations.

Details

Original languageEnglish
Title of host publicationProceedings of the 24th International Workshop on Rare Earth Permanent Magnets and their Applications
Publication statusPublished - 28 Aug 2016
Event24th International Workshop on Rare Earth Permanent Magnets and Their Applications - Darmstadt, Germany
Duration: 21 Aug 2016 → …

Conference

Conference24th International Workshop on Rare Earth Permanent Magnets and Their Applications
Abbreviated titleREPM2016
CountryGermany
CityDarmstadt
Period21/08/16 → …