Results 161 to 170 of about 106,357 (199)
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Antiphase domains in icosahedral Al‐Cu‐Fe alloy
Philosophical Magazine B, 1989Abstract Electron microscopy observations of the newly discovered icosahedral phase in the Al‐Cu‐Fe ternary system show a domain structure as expected from a group‐subgroup formal decomposition from a primitive six-dimensional (6D) hypercubic unit cell to a face‐centred one with twice the lattice parameter, as suggested by Ebalard and Spaepen.
Jacqueline Devaud Rzepski +4 more
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Local Structure and Stability of Amorphous Cu–Fe–Zr Alloys
Materials Science and Engineering, 1988The local structure and stability of amorphous Cu60 − xFexZr40 were investigated by Mossbauer effect and differential scanning calorimetry measurements. The isomer shift decreased with increasing iron concentration for x 5. The activation energy of crystallization was 5.5–5.8 eV for x 5.
M. Taniwaki, E. Hatta, M. Maeda
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Properties of as-quenched and hydrogenated CuFeTi alloys
Materials Science and Engineering, 1988Abstract X-ray diffraction, differential thermal analysis and Mossbauer effect measurements have been used to study the properties of amorphous Cu 100-x-y Fe x Ti y alloys in the as-quenched state after hydrogenation and after various heat treatments.
R.A. DUNLAP +3 more
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Structural and magnetic properties of metastable fcc Cu-Fe alloys
Physical Review B, 1996The structural properties of the metastable fcc Cu-Fe alloys obtained by high-energy ball milling of elemental powders have been studied by transmission electron microscopy. The same technique has been used to study the effect of thermal annealing on the alloyed samples.
, Mazzone, , Antisari
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Decomposition of the icosahedral phase in AlCuFe alloys
Materials Science and Engineering: A, 1991Abstract Two modes of decomposition of the icosahedral phase were observed in rapidly solidified AlCuFe alloys. Discontinuous decomposition of the icosahedral phase proceeds by migration of a reaction front into the icosahedral phase as observed in Al77Cu13Fe10 by peritectoid reaction, in Al70Cu20Fe10 by polymorphic reaction, and in Al65Cu20Fe15 by
Wei Liu, Uwe Köster
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Density and Surface Tension of Liquid Ternary Ni–Cu–Fe Alloys
International Journal of Thermophysics, 2006Abstract Density and surface tension of liquid Ni –Cu –Fe alloys have been measured over a wide temperature range, including the undercooled regime. A non-contact technique was used, consisting of an electromagnetic levitator, an optical densitometer, and an oscillating drop tensiometer. At temperatures above and below the
Brillo, J., Egry, Ivan, Matsushita, T.
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Homogenization of Highly Alloyed Cu-Fe-Ni: A Phase Diagram Study
Journal of Phase Equilibria and Diffusion, 2008Six highly alloyed Cu-Fe-Ni alloys have been processed with different heat treatments and studied by means of electron microprobe and differential thermal analyses. The results are discussed in comparison with an equilibrium phase diagram calculation performed using the CALPHAD (CALculation of PHAse Diagrams) method.
I. Gallino +4 more
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Magnetic properties of nanocrystalline Cu-Fe-Co alloys processed by mechanical alloying
IEEE Transactions on Magnetics, 1995The effects of Co addition on structural and magnetic property changes during mechanical alloying of Fe and Cu have been studied by using X-ray diffractometry (XRD) and magnetometry. Supersaturated fcc solid solutions with crystallite size of /spl sim/7 nm have been prepared by mechanical alloying Cu/sub 0.5/Fe/sub 0.5-x/ (x=0.0, 0.1, 0.2, 0.4) powders.
null Yong Goo Yoo +2 more
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Activity of Arsenic in Liquid Cu–Fe Base Alloys
Monatshefte für Chemie - Chemical Monthly, 2005The activity of arsenic in liquid Cu–Fe base alloys was determined by isopiestic and Knudsen cell-mass spectrometer methods. Based on the activity data, the volatilization of arsenic in the extraction and recycling of copper was thermodynamically evaluated.
Kimio Itagaki +3 more
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Al–Cu–Fe QUASICRYSTALLINE PHASE FORMATION BY MECHANICAL ALLOYING
Materials and Manufacturing Processes, 2002Al–Cu–Fe alloys were prepared from elemental powders in a high-energy planetary ball mill. A sequence of solid state reactions resulting in quasicrystal (QC) phase formation takes place during heating of the as-milled powder. These reactions were studied by both differential scanning calorimetry and x-ray diffraction methods.
V. V. Tcherdyntsev +9 more
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