Metastable phases formation induced by mechanical alloying

1995 ◽  
Vol 30 (19) ◽  
pp. 4847-4851 ◽  
Author(s):  
G. J. Fan ◽  
M. X. Quan ◽  
Z. Q. Hu
Keyword(s):  
Mechanical Alloying ◽  
Metastable Phases

Effects of iron impurities in mechanical alloying using steel media

1993 ◽  
Vol 8 (2) ◽  
pp. 239-241 ◽  
Author(s):  
P.J. Yvon ◽  
R.B. Schwarz
Keyword(s):  
Mechanical Alloying ◽  
Ball Milling ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Metastable Phases ◽  
Iron Contamination ◽  
Energy Ball ◽  
Ball Milling Technique

Mechanical alloying, a high-energy ball-milling technique, is now widely used for preparing alloy powders with metastable phases (crystalline or amorphous). The technique, however, may contaminate the powder with material eroded from the vial and milling media. We report on the analysis and effects of iron contamination on Al25Ge75 powders that we prepared by mechanically alloying mixtures of aluminum and germanium powders, using different mechanical alloying apparatuses.

Competition between stable and metastable phases during mechanical alloying and ball milling

1992 ◽  
Vol 131 (2) ◽  
pp. 671-689 ◽  
Author(s):  
M. Oehring ◽  
Z. H. Yan ◽  
T. Klassen ◽  
R. Bormann
Keyword(s):  
Mechanical Alloying ◽  
Ball Milling ◽  
Metastable Phases ◽  
Stable And Metastable Phases

Synthesis of metastable phases in Al-Nb powders by mechanical alloying

1992 ◽  
Vol 27 (4) ◽  
pp. 475-480 ◽  
Author(s):  
Zhixue Peng ◽  
C Suryanarayana ◽  
F.H Froes
Keyword(s):  
Mechanical Alloying ◽  
Metastable Phases

Structural transformations and metastable phases produced by mechanical deformations in the Bi–Sr–Ca–Cu–O superconducting system

1993 ◽  
Vol 8 (6) ◽  
pp. 1258-1267 ◽  
Author(s):  
P. Tessier ◽  
M.L. Trudeau ◽  
J.O. Ström-Olsen ◽  
R. Schulz
Keyword(s):  
Thermal Stability ◽  
Mechanical Alloying ◽  
Structural Transformations ◽  
Metastable Phases ◽  
Thermal Treatments ◽  
Amorphous Phases ◽  
Mechanical Deformations ◽  
Chemical Disorder ◽  
Mechanisms Of Formation ◽  
Thermal Stability Of

The structural transformations occurring during the mechanical alloying of mixtures of elemental oxides in the Bi–Sr–Ca–Cu–O system have been studied. Metastable cubic structures with complete chemical disorder and amorphous phases can be synthesized by strong mechanical deformations. With proper thermal treatments, these metastable phases transform into the high Tc superconducting structures. Discussions on the mechanisms of formation and on the thermal stability of the various metastable phases are presented.

Metastable phases of Al–Fe system by mechanical alloying

1997 ◽  
Vol 231 (1-2) ◽  
pp. 72-79 ◽  
Author(s):  
B Huang ◽  
K.N Ishihara ◽  
P.H Shingu
Keyword(s):  
Mechanical Alloying ◽  
Metastable Phases
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