Solid state amorphization in the Al-Fe binary system during high energy milling

2013 ◽  
Author(s):  
P. Urban ◽  
F. G. Cuevas ◽  
J. M. Montes ◽  
J. Cintas
Keyword(s):  
Solid State ◽  
Binary System ◽  
High Energy ◽  
High Energy Milling ◽  
State Amorphization

Double amorphization in the Ti-Al binary system during high-energy milling

1993 ◽  
Vol 12 (2) ◽  
Author(s):  
M. Qi ◽  
M. Zhu ◽  
G.B. Li ◽  
H.X. Sui ◽  
D.Z. Yang
Keyword(s):  
Binary System ◽  
High Energy ◽  
High Energy Milling

Solid-state amorphization of As 45 S 55 alloy induced by high-energy mechanical milling

2016 ◽  
Vol 642 ◽  
pp. 59-66 ◽  
Author(s):  
O. Shpotyuk ◽  
A. Kozdras ◽  
P. Demchenko ◽  
Ya. Shpotyuk ◽  
Z. Bujňáková ◽  
...  
Keyword(s):  
Solid State ◽  
Mechanical Milling ◽  
High Energy ◽  
State Amorphization

Solid state sintering of a W–25wt% Ag powder prepared by high energy milling

2008 ◽  
Vol 26 (4) ◽  
pp. 318-323 ◽  
Author(s):  
F.A. da Costa ◽  
A.G.P. da Silva ◽  
F. Ambrozio Filho ◽  
U.U. Gomes
Keyword(s):  
Solid State ◽  
High Energy ◽  
High Energy Milling ◽  
Solid State Sintering

scholarly journals Strong photoluminescence and sensing performance of nanosized Ca0.8Ln0.1Na0.1WO4(Ln = Sm,Eu) compounds obtained by the dry “top-down” grinding method

2019 ◽  
Vol 48 (32) ◽  
pp. 12080-12087 ◽  
Author(s):  
Germán E. Gomez ◽  
Carlos A. López ◽  
R. Lee Ayscue ◽  
Karah E. Knope ◽  
María del R. Torres Deluigi ◽  
...  
Keyword(s):  
Solid State ◽  
High Energy ◽  
Photoluminescence Properties ◽  
Top Down ◽  
High Energy Milling ◽  
Sensing Applications ◽  
Grinding Method ◽  
Doped Materials ◽  
Sensing Performance

Two new nanosized lanthanide-doped materials (Sm and Eu) obtained by high-energy milling provided a suitable platform with solid-state photoluminescence properties for sensing applications.

scholarly journals Characterization of phase changes during fabrication of copper alloys, crystalline and non-crystalline, prepared by mechanical alloying

2016 ◽  
Vol 36 (3) ◽  
pp. 102 ◽  
Author(s):  
Paula Rojas ◽  
Carola Martínez ◽  
Claudio Aguilar ◽  
Francisco Briones ◽  
María Eugenia Zelaya ◽  
...  
Keyword(s):  
Solid Solution ◽  
Solid State ◽  
Mechanical Alloying ◽  
Binary Systems ◽  
Copper Alloys ◽  
High Energy ◽  
Phase Changes ◽  
Mathematical Methods ◽  
High Energy Milling ◽  
Pure Metals

The manufacture of alloys in solid state has many differences with the conventional melting (casting) process. In the case of high energy milling or mechanical alloying, phase transformations of the raw materials are promoted by a large amount of energy that is introduced by impact with the grinding medium; there is no melting, but the microstructural changes go from microstructural refinement to amorphization in solid state. This work studies the behavior of pure metals (Cu and Ni), and different binary alloys (Cu-Ni and Cu-Zr), under the same milling/mechanical alloying conditions. After high-energy milling, X ray diffraction (XRD) patterns were analyzed to determine changes in the lattice parameter and find both microstrain and crystallite sizes, which were first calculated using the Williamson-Hall (W-H) method and then compared with the transmission electron microscope (TEM) images. Calculations showed a relatively appropriate approach to observations with TEM; however, in general, TEM observations detect heterogeneities, which are not considered for the W-H method. As for results, in the set of pure metals, we show that pure nickel undergoes more microstrain deformations, and is more abrasive than copper (and copper alloys). In binary systems, there was a complete solid solution in the Cu-Ni system and a glass-forming ability for the Cu-Zr, as a function of the Zr content. Mathematical methods cannot be applied when the systems have amorphization because there are no equations representing this process during milling. A general conclusion suggests that, under the same milling conditions, results are very different due to the significant impact of the composition: nickel easily forms a solid solution, while with a higher zirconium content there is a higher degree of glassforming ability.

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