Nanoquasicrystalline Phase in Mechanically Alloyed and Heat-Treated Al_{73}Cu_{11}Cr_{16}

• Authors: T. Sviridova , A. Shevchukov , E. Shelekhov , D. Diakonov , M. Gorshenkov , S. Kaloshkin , V. Tcherdyntsev , Z. Li , G. Fan
• Languages of publication: EN

Abstracts

EN

X-ray diffraction analysis, scanning and transmission electron microscopy, thermal analysis and measurement of chemical composition were implemented to determine structure, thermal stability and chemical composition of the decagonal quasicrystal in Al_{73}Cu_{11}Cr_{16} alloy produced by long-term mechanical alloying of elemental powders followed by annealing at 700°C. According to the TEM investigation such a technique permits to produce a single-phase nanostructural quasicrystal with grain size about 60 nm. Differential thermal analysis revealed that the decagonal phase does not exist above 923°C and undergoes incongruent two-stage melting coming to the end at 1100°C.

Keywords

EN

61.44.Br; 64.70.kd; 61.05.cp; 61.05.J-

Discipline

• 61.05.cp: X-ray diffraction
• 61.44.Br: Quasicrystals
• 61.05.J-: Electron diffraction and scattering(for electron diffractometers, see 07.78.+s)
• 64.70.kd: Metals and alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 2
• Pages: 599-602

Dates

published

2014-08

Contributors

author

T. Sviridova

• Center for Composite Materials, National University of Science and Technology "MISIS", Moscow 119049, Russia

author

A. Shevchukov

• Center for Composite Materials, National University of Science and Technology "MISIS", Moscow 119049, Russia

author

E. Shelekhov

• Center for Composite Materials, National University of Science and Technology "MISIS", Moscow 119049, Russia

author

D. Diakonov

• Bardin Central Research Institute for the Iron and Steel Industry, Moscow 105005, Russia

author

M. Gorshenkov

• Int. School of Microscopy, National University of Science and Technology "MISIS", Moscow 119049, Russia

author

S. Kaloshkin

• Center for Composite Materials, National University of Science and Technology "MISIS", Moscow 119049, Russia

author

V. Tcherdyntsev

• Center for Composite Materials, National University of Science and Technology "MISIS", Moscow 119049, Russia

author

Z. Li

• State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China

author

G. Fan

• State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China

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Identifiers

DOI

10.12693/APhysPolA.126.599