Formation of Al67Cu23Fe10 quasicrystals by microwave heating
| Autor: | Matthias Lütgens, Eberhard Burkel, Daniel Schick, Carmen Mihoc, Christian Lathe |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Diffraction
Materials science Scanning electron microscope Metals and Alloys Analytical chemistry Institut für Physik und Astronomie Quasicrystal 550 - Earth sciences Condensed Matter Physics Microstructure Synchrotron law.invention Crystallography Condensed Matter::Materials Science Differential scanning calorimetry law Phase (matter) Materials Chemistry Physical and Theoretical Chemistry Microwave |
| Zdroj: | International Journal of Materials Research |
| Popis: | The present work was carried out to compare the formation of single icosahedral phase during conventional heating and microwave processing. Al67Cu23Fe10 alloy powder was synthesized from high purity (99.9%) powder elements by mechanical alloying. Differential scanning calorimetry combined with in-situ synchrotron energy dispersive X-ray diffraction was used to identify the main solid state reactions and the phase evolution of the powders. Inductive microwave processing in the magnetic field anti-node was performed to obtain the quasicrystalline phase in only a few seconds. Due to the rapid cooling of the sample it was possible to stabilize the icosahedral phase against its competing quasicrystalline approximants. Laboratory X-ray diffraction analysis was used to characterise the atomic structure of the specimen and scanning electron microscopy was used to characterise the microstructure after the microwave processing. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|