0000000001008716

AUTHOR

G. Le Caër

showing 2 related works from this author

Control of grain size and morphologies of nanograined ferrites by adaptation of the synthesis route: mechanosynthesis and soft chemistry

2003

Abstract Nanocrystalline Fe-based spinels with composition Fe 2.5 Ti 0.5 O 4 can be synthesized using two different routes: soft chemistry and high-energy ball milling. This paper is focussed on the fact that each type of synthesis process can lead to powders with a crystallite size of about 15 nm but with significant differences in the grain size distribution and the agglomeration state. Whereas in the case of mechanosynthesis, the ball-milled powders consist of aggregates, those obtained by soft chemistry are very well dispersed. Moreover the chosen investigated nanopowders present a blocked/superparamagnetic transition depending on the grain size. The grain size morphologies obtained by …

Materials scienceMineralogy02 engineering and technology[SPI.MAT] Engineering Sciences [physics]/Materials010402 general chemistry01 natural sciencesSoft chemistry[SPI.MAT]Engineering Sciences [physics]/MaterialsInorganic ChemistryMagnetizationMaterials ChemistryPhysical and Theoretical ChemistryComputingMilieux_MISCELLANEOUS021001 nanoscience & nanotechnologyCondensed Matter PhysicsNanocrystalline materialGrain size0104 chemical sciencesElectronic Optical and Magnetic MaterialsChemical engineeringParticle-size distributionCeramics and CompositesMechanosynthesisCrystallite0210 nano-technologySuperparamagnetismJournal of Solid State Chemistry
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Poster contributions

1989

Nuclear and High Energy PhysicsMaterials sciencePhysical and Theoretical ChemistryCondensed Matter PhysicsAtomic and Molecular Physics and OpticsHyperfine Interactions
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