Synthesis of stable and metastable phases in the Ni Si system by mechanical alloying

2016 ◽  
Vol 302 ◽  
pp. 8-14 ◽  
Author(s):  
Ahmed A. Al-Joubori ◽  
C. Suryanarayana
Keyword(s):  
Mechanical Alloying ◽  
Metastable Phases ◽  
Stable And Metastable Phases

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

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

On the Coexistence of Chemically Similar Stable and Metastable Phases in the BeO–MgO–Al2O3–SiO2 System

2018 ◽  
Vol 12 (4) ◽  
pp. 756-760 ◽  
Author(s):  
M. A. Mikhailov ◽  
S. G. Mamontova ◽  
S. Z. Zelentcov ◽  
T. V. Demina ◽  
O. Yu. Belozerova ◽  
...  
Keyword(s):  
Metastable Phases ◽  
Sio2 System ◽  
Stable And Metastable Phases

scholarly journals Metastable phases and macroheterogeneous composites

2021 ◽  
Vol 29 (1) ◽  
pp. 65-68
Author(s):  
O. V. Sukhova
Keyword(s):  
Phase Diagram ◽  
Composite Materials ◽  
Abrasive Wear ◽  
Metastable Phase ◽  
Interfacial Reactions ◽  
Metastable Phases ◽  
Metastable Phase Diagram ◽  
Rapid Dissolution ◽  
Strong Adhesion ◽  
Stable And Metastable Phases

The way to control the interfacial reactions that processes during infiltration of macroheterogeneous composite materials is suggested. The idea is to combine the stable and metastable phases in the filler’s structure which dissolves at a different rate in the molten binder. To prove this approach, the structure and gas-abrasive wear of macroheterogeneous composite materials with Cu–20Ni–20Mn binder reinforced by Fe–(9.0–10.0)B–(0.01-0.2)C filler (in wt. %) cooled at 10–20 K/s or 103–104 K/s are studied. It is shown that the wear resistance of the investigated composite materials can be enhanced by accelerating interfacial reactions between the filler and the molten binder. Therefore, the composite materials produced from a rapidly cooled Fe–B–C filler show a higher resistance to gas-abrasive wear due to formation of Fe–Fe2(B,C) metastable eutectics in its structure. This eutectics crystallizes under metastable phase diagram due to the suppression of stable Fe2(B,C) phase formation and saturation of the rest of liquid by iron in the filler cooled at 103–104 K/s. As a result of rapid dissolution of the eutectics in the molten binder during infiltration, the strong adhesion at the interfaces of the composite materials is achieved which prevents the filler from spalling out under the impacts of abrasive.

Stable and metastable phases in Agl-containing silver borate glasses

1983 ◽  
Vol 28 (2) ◽  
pp. 273-278 ◽  
Author(s):  
G. Chiodelli ◽  
G. Flor ◽  
A. Magistris ◽  
G. Campari Vigano' ◽  
M. Villa
Keyword(s):  
Metastable Phases ◽  
Borate Glasses ◽  
Stable And 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.

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