6533b85efe1ef96bd12c0685

RESEARCH PRODUCT

In situ synchrotron radiation monitoring of phase transitions during microwave heating of Al–Cu–Fe alloys

Radu NiculaRadu NiculaBruce D. PattersonBernd SchmittS. VaucherJose-manuel Catala-civera

subject

In situDiffractionPhase transitionMaterials scienceMechanical EngineeringAnalytical chemistrySynchrotron radiationQuasicrystalCondensed Matter PhysicsMetalCondensed Matter::Materials ScienceMechanics of Materialsvisual_artvisual_art.visual_art_mediumGeneral Materials ScienceUltrashort pulseMicrowave

description

The effect of rapid microwave heating has so far been evaluated mainly by comparing the state of materials before and after microwave exposure. Yet, further progress critically depends on the ability to follow the evolution of materials during ultrafast heating in real time. We describe the first in situ time-resolved monitoring of solid-state phase transitions during microwave heating of metallic powders using wide-angle synchrotron radiation diffraction. Single-phase Al–Cu–Fe quasicrystal powders were obtained by microwave heating of nanocrystalline alloy precursors at 650 °C in <20 s.

https://doi.org/10.1557/jmr.2008.0009