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

Published online by Cambridge University Press:  31 January 2011

Sébastien Vaucher*
Affiliation:
EMPA, Swiss Federal Laboratories for Materials Science and Technology, CH-3602 Thun, Switzerland
Radu Nicula
Affiliation:
EMPA, Swiss Federal Laboratories for Materials Science and Technology, CH-3602 Thun, Switzerland; and Institute of Physics, University of Rostock, D-18055 Rostock, Germany
José-Manuel Català-Civera
Affiliation:
Polytechnical University of Valencia, School of Telecommunication, Camino de Vera s/n E-46022 Valencia, Spain
Bernd Schmitt
Affiliation:
Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
Bruce Patterson
Affiliation:
Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

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.

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Articles
Copyright
Copyright © Materials Research Society 2008

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References

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