scholarly journals AMORPHOUS PHASE FORMATION OF Ni/Ti BILAYER SYSTEM BY SOLID STATE REACTION AND ION BEAM MIXING

1990 ◽  
Vol 39 (7) ◽  
pp. 101
Author(s):  
LIU WEN-HONG ◽  
ZHU DE-ZHANG ◽  
WANG ZHEN-XIA ◽  
LIU XIANG-HUAI
Keyword(s):  
Solid State ◽  
Amorphous Phase ◽  
Phase Formation ◽  
Solid State Reaction ◽  
Ion Beam ◽  
Ion Beam Mixing ◽  
Bilayer System ◽  
Amorphous Phase Formation

Evidence for a nucleation barrier in the amorphous phase formation by solid-state reaction of Ni and single-crystal Zr

1986 ◽  
Vol 1 (6) ◽  
pp. 774-780 ◽  
Author(s):  
A.M. Vredenberg ◽  
J.F.M. Westendorp ◽  
F.W. Saris ◽  
N.M. van der Pers ◽  
Th.H. de Keijser
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
Amorphous Phase ◽  
Phase Formation ◽  
Solid State Reaction ◽  
Nucleation Barrier ◽  
Amorphous Phase Formation

Thermodynamic aspects of amorphous phase formation

1986 ◽  
Vol 1 (1) ◽  
pp. 38-46 ◽  
Author(s):  
N. Saunders ◽  
A. P. Miodownik
Keyword(s):  
Free Energy ◽  
Solid State ◽  
Amorphous Phase ◽  
Phase Formation ◽  
Vapor Deposition ◽  
Solid State Reaction ◽  
Temperature Stability ◽  
Temperature Liquid ◽  
Amorphous Phase Formation ◽  
Alloy Systems

The glass-forming ability of the three alloy systems Co–Zr, Cu–Zr, and Ni–Zr has been analyzed for three distinct production routes: (1) liquid quenching, (2) vapor deposition, and (3) solidstate reaction. Using the free energy and heats of formation curves obtained from the thermodynamic characterization of the respective alloy systems, a satisfactory rationale can be obtained for amorphous phase formation by all three routes. The analysis shows that while amorphous phase formation by quenching from the high-temperature liquid is clearly dependent on factors such as quench rate and the value TG/TM, it is the low-temperature stability of the amorphous phase relative to the other crystalline structures that enables amorphous phases to be formed by both vapor deposition and solid-state reaction. The underlying free energy curves indicate the interesting possibility of a supersaturation sequence in the nucleation of an amorphous phase by solid-state reaction. The principles underlying thermodynamic characterizations are briefly discussed, and a characterization for Co–Zr is presented.

Sign in / Sign up

Export Citation Format

Share Document