Study of the formation of the amorphous phase in metallic systems by mechanical alloying

1988 ◽  
Vol 97 ◽  
pp. 115-119 ◽  
Author(s):  
R. Sundaresan ◽  
A.G. Jackson ◽  
S. Krishnamurthy ◽  
F.H. Froes
Keyword(s):  
Mechanical Alloying ◽  
Amorphous Phase ◽  
Metallic Systems

Study of the Formation of the Amorphous Phase in Metallic Systems by Mechanical Alloying

1988 ◽  
pp. 115-119
Author(s):  
R. SUNDARESAN ◽  
A.G. JACKSON ◽  
S. KRISHNAMURTHY ◽  
F.H. FROES
Keyword(s):  
Mechanical Alloying ◽  
Amorphous Phase ◽  
Metallic Systems

Amorphous phase formation in Al80Fe10M10 (M = Ni, Ti, and V) ternary systems by mechanical alloying

2011 ◽  
Vol 46 (23) ◽  
pp. 7633-7638 ◽  
Author(s):  
M. Tavoosi ◽  
F. Karimzadeh ◽  
M. H. Enayati ◽  
S.-H. Joo ◽  
H. S. Kim
Keyword(s):  
Mechanical Alloying ◽  
Amorphous Phase ◽  
Phase Formation ◽  
Ternary Systems ◽  
Amorphous Phase Formation

AN ELECTROCHEMICAL INVESTIGATION OF NANOCRYSTALLINE Mg2Ni0.75Nb0.25 COMPOUND SYNTHESIZED BY MECHANICAL ALLOYING

2008 ◽  
Vol 22 (18n19) ◽  
pp. 2939-2946 ◽  
Author(s):  
M. MOHRI ◽  
S. F. KASHANI BOZORG
Keyword(s):  
Mechanical Alloying ◽  
Amorphous Phase ◽  
Ternary Mixtures ◽  
Partial Substitution ◽  
X Ray Diffraction ◽  
Formation Kinetic ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Binary And Ternary Mixtures ◽  
Milled Product

The effects of mechanical alloying on the microstructure of binary and ternary powder mixtures with stoichiometric compositions of Mg 2 Ni and Mg 2 Ni 0.75 Nb 0.25 were studied, respectively. Also, the electrode properties of the milled products were investigated in 6M KOH solution. X-ray diffraction and scanning electron microscopy of the milled products showed the formation of Mg 2 Ni -based nanocrystallites after 15 and 10h of milling using the initial binary and ternary mixtures, respectively. It was found that partial substitution of Nb for Ni has beneficial effect on the formation kinetic of nanocrystalline Mg 2 Ni . Longer milling times resulted in the formation of an amorphous phase. A relatively high discharge capacity of 350mAhg-1 was measured for the electrode made up of the ternary milled product after 20h. Also, the ternary milled product showed longer discharge life. This ternary electrode showed a microstructure consisting of Mg 2 Ni nanocrystallites and an amorphous phase. Nb substitution for Ni was found to be beneficial to electrode properties of the milled products.

Microstructural characterization and amorphous phase formation in Co40Fe22Ta8B30 powders produced by mechanical alloying

2012 ◽  
Vol 512 (1) ◽  
pp. 85-93 ◽  
Author(s):  
Amir Hossein Taghvaei ◽  
Mihai Stoica ◽  
Gavin Vaughan ◽  
Mohammad Ghaffari ◽  
Saeed Maleksaeedi ◽  
...  
Keyword(s):  
Mechanical Alloying ◽  
Amorphous Phase ◽  
Phase Formation ◽  
Microstructural Characterization ◽  
Amorphous Phase Formation

On the Evolution of the Amorphous Phase in Cu-Ti Alloys Produced by Mechanical Alloying

1995 ◽  
Vol 179-181 ◽  
pp. 255-260 ◽  
Author(s):  
J.A. Hunt ◽  
I. Soletta ◽  
Stefano Enzo ◽  
Li Meiya ◽  
R.L. Havill ◽  
...  
Keyword(s):  
Mechanical Alloying ◽  
Amorphous Phase ◽  
Ti Alloys

Solid State Amorphization of Ti60Si40 Alloy via Mechanical Alloying

2021 ◽  
Vol 876 ◽  
pp. 7-12
Author(s):  
Petr Urban ◽  
Fátima Ternero Fernández ◽  
Rosa M. Aranda Louvier ◽  
Raquel Astacio López ◽  
Jesus Cintas Físico
Keyword(s):  
Electron Microscopy ◽  
Particle Size ◽  
Mechanical Alloying ◽  
Amorphous Phase ◽  
Milling Time ◽  
X Ray Diffraction ◽  
Mechanically Alloyed ◽  
Scanning Calorimetry ◽  
Transmission Electron ◽  
Heating Up

The effect of milling time on the microstructure evolution and formation of amorphous phase of Ti60Si40 alloy produced by mechanical alloying (MA) has been investigated. Laser diffraction, Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Differential Scanning Calorimetry (DSC) were employed to characterize the particle size, morphology and structure of mechanically alloyed Ti60Si40. When the milling time is increased to 20 h, the particle size decreases from 23.7 to 4.7 μm, the shape of the particles changes to spherical and the crystalline structure is transformed into an amorphous phase. The amorphous Ti60Si40 alloy is stable when heating up to 750oC. Above this temperature, the cold crystallization of the intermetallic compounds Ti5Si3 and/or Ti5Si4 begins.

ChemInform Abstract: Mechanical Alloying of Aluminium and Al13Co4 to an Amorphous Phase.

ChemInform ◽  
2010 ◽  
Vol 26 (27) ◽  
pp. no-no
Author(s):  
T. TSURUI ◽  
A. P. TSAI ◽  
A. INOUE ◽  
T. MASUMOTO
Keyword(s):  
Mechanical Alloying ◽  
Amorphous Phase
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