| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7893956 | Corrosion Science | 2018 | 12 Pages |
Abstract
The microstructure evolution and mechanism of oxidation of (Nd,Pr)FeB magnet in the range 700-1500â¯K have been investigated. Bulk (10â¯Ãâ¯5â¯Ãâ¯5â¯mm) and powder samples (â150â¯Î¼m) were oxidized under isothermal and non-isothermal conditions. DSC, XRD, high-temperature XRD, SEM and EPMA characterization techniques were utilized to investigate the general oxidation reactions, microstructure evolutions and phase transformations. Three different microstructure evolutions were observed in the temperature ranges 700-1000â¯K, 1000-1300â¯K and 1300-1500â¯K. The different product microstructures formed during the oxidation have implications for devising strategies for the recycling/recovery process of (Nd,Pr)FeB magnets.
Keywords
DSCWavelength dispersive X-ray spectroscopyB. XRDB. SEMWDSCEMSREEEDSEPMATGAEOLRare earthA. Rare earth elementsC. OxidationRare earth permanent magnetEnergy Dispersive X-ray SpectroscopyRare earth oxideC. Internal oxidationTemB. EPMAThermogravimetric analysisElectron probe micro analysisReoTransmission Electron SpectroscopyConversion electron Mössbauer spectroscopyRare earth elementsSEMscanning electron microscopeEnd-of-lifeX-ray diffractionXRDDifferential scanning calorimetry
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Muhamad Firdaus, M. Akbar Rhamdhani, W. John Rankin, Mark Pownceby, Nathan A.S. Webster, Anita M. D'Angelo, Kathie McGregor,