— Cu-Ag alloys in three different compositions (Cu – 25/50/75wt% Ag) were produced by powder consolidation followed by high-pressure torsion. Deformation was performed till a saturation regime was reached. The generated microstructures were investigated by transmission electron microscopy and vary from ultra-fine grained to …

Structural and Chemical Nanoscale Electron Microscopy Characterization of Ag-Cu Ball Milled Powders - Volume 9 Issue S02 - P. Bellon, S. Zghal, M. J. Hÿtch, J. -P ...

 — Section snippets Experimental. Ball milling of Cu and Ag powders was performed following the procedure described in detail by Klassen et al. [6]. Powders of Cu and Ag were mixed to achieve the desired nominal (atomic) composition of Ag 50 Cu 50.All elevated-temperature millings were preceded by a 24. h milling treatment at ambient …

 — It has been reported that mechanical milling of an Ag-Cu system produces a complete solid solution for the entire composition [11][12][13] [14] [15]; hence, Ag-Cu particles were mechanically ...

s Zghal broyage a boulets cu ag. s Zghal broyage a boulets cu ag T11:09:55+00:00 boulets de broyage English translation – Linguee. Broyage du c ru/séchage en broye ur à boulets, bro yeur vertical, etc x x Prehomogenisation o f raw materials x x Grinding of raw meal/ drying with ball mill, vertical mills etc x x Broyeur à boulets d or à vendreSamy s Broyeur …

 — Abstract. Microstructures and phases stabilized at steady state by variable temperature ball milling of Cu 50 Ag 50 powders are characterized using transmission …

It is well documented that low-temperature ball-milling can force immiscible elements, e.g., Cu and Ag, into solid solution. A slight increase of the milling temperature however results in a two- or even three-phase coexistence [1]. This coexistence is likely to take place at a nanometric scale since ball-milling results in the formation of grains with a size in the 10 …

 — Cu_90Ag_10 alloys were subjected to severe plastic deformation at temperatures ranging from 25 to 400 °C and strain rates ranging from 0.1 to 6.25 s^−1 using high-pressure torsion.

Electron microscopy nanoscale characterization of ball-milled Cu–Ag … Semantic Scholar extracted view of "Electron microscopy nanoscale characterization of ball-milled Cu–Ag powders. Part I: Solid solution synthesized by cryo-milling" by S. Zghal et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo.

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 — Structural and Chemical Characterization of Cu-Ag and Ni-Ag Nanocomposites Synthesized by High-Energy Ball Milling. S. Zghal, P. Bhattacharya, +2 …

We present a study of nanostructured Cu-Ag material obtained by low temperature ball milling.

 — The solid state reactions induced by high-energy ball milling of Al/Ni elemental mixtures at 25, 33, 50, 67 and 75 Ni at.% have been studied by X-ray diffraction and electron microscopy.

We present a study of nanostructured Ag-Cu powder material obtained by variable temperature ball-milling. The microstructural characterization is carried out using a wide …

 — In the case of alloys with positive heat of mixing, it is also sometimes possible to force a solid solution by low temperature milling (e.g., Cu-Ag), or to stabilize …

Commercially pure copper and silver powders were combined to obtain an average molar composition of 90% Cu and 10% Ag and then subjected to high-energy ball milling using a SPEX 8000 mill in an argon glove box for 12 h at ambient temperature (∼50 °C).Ball milling forces the mixing of Cu and Ag into a solid solution [23].The ball-milled …

Energies of the balls at different milling intensities and ball to powder weight ratios for Ti 50 Ni 50 (3 balls)

Semantic Scholar extracted view of "Structural and Chemical Characterization of Cu-Ag and Ni-Ag Nanocomposites Synthesized by High-Energy Ball Milling" by S. Zghal et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 220,714,380 papers from all fields of science ...

 — Fe powders were mechanically processed by ball milling. The average size of coherent diffraction domains and the average strain content were determined by X-ray diffraction. A mathematical model was developed to describe the microstructural refinement process as a function of the number of collisions and to estimate the amount of powder …

Electron microscopy nanoscale characterization of ball milled Cu-Ag powders. Part II: Nanocomposites synthesized by elevated temperature milling or annealing (PDF) Electron microscopy nanoscale characterization of ball milled Cu-Ag powders.

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Acta Materialia 50 (2002) 4695–4709 Electron microscopy nanoscale characterization of ballmilled Cu–Ag powders. Part I: Solid solution synthesized by cryo-milling S. Zghal a,b, M.J. Hÿtch c, J. …

Microstructures and phases stabilized at steady state by variable temperature ball milling of Cu 50 Ag 50 powders are characterized using transmission and scanning transmission electron microscopy. Starting from chemically mixed and cold-worked powders obtained by room temperature milling, it is shown that, upon increasing the milling temperature, the …

We present a study of nanostructured Ag-Cu powder material obtained by variable temperature ballmilling. The microstructural characterization is carried out using a wide variety of transmission electron microscopy (TEM) techniques, ranging from

 — Abstract The effect of ball milling powder mixtures of Höganäs pre-alloyed iron Astaloy CrM, low-carbon ferromanganese Elkem, elemental electrolytic Cu and C-UF graphite on the sintered structure and mechanical properties was evaluated. The mixing was conducted using Turbula mixer for 30 minutes and CDI-EM60 frequency inverter for …

 — The use of a number of modern real space or nanoprobe techniques, carefully quantified, has led to a new description of the nanostructure of ball-milled …

We present a study of nanostructured Cu-Ag material obtained by low temperature ball milling. The microstructural characterization is carried out using a wide variety of transmission electron microscopy (TEM) techniques from conventional dark-field imaging, selected area diffraction and energy dispersive X-ray spectrometry (EDS) to more …

 — Commercially pure copper and silver powders were combined to obtain an average molar composition of 90% Cu and 10% Ag and then subjected to high-energy ball milling using a SPEX 8000 mill in an argon glove box for 12 h at ambient temperature (∼50 °C).Ball milling forces the mixing of Cu and Ag into a solid solution [23].The ball-milled …

 — By combining forced mixing and decomposition in ball-milled Cu 50 Ag 50 powders, Zghal et al. [14] reported the formation of Cu/Ag nanocomposite with a very high hardness. ... TEM specimens were prepared by ion milling the wires supported on a Mo ring, which were observed by a Philips CM200 TEM. Needle like specimens for 3DAP …

Electron microscopy nanoscale characterization of ball-milled Cu–Ag powders. Part I: Solid solution synthesized by cryo-milling