Enthalpy relaxation behaviour of Al-Si-Cr quasicrystalline and amorphous alloys upon annealing

1988 ◽  
Vol 23 (2) ◽  
pp. 429-437 ◽  
Author(s):  
A. Inoue ◽  
A. P. Tsai ◽  
H. M. Kimura ◽  
T. Masumoto
Keyword(s):  
Amorphous Alloys ◽  
Enthalpy Relaxation ◽  
Relaxation Behaviour

Enthalpy relaxation and Curie temperature behavior in Fe(Ni,Co)Zr amorphous alloys

1993 ◽  
Vol 152 (2-3) ◽  
pp. 212-218 ◽  
Author(s):  
Tae-Hwan Noh ◽  
Akihisa Inoue ◽  
Hiroyasu Fujimori ◽  
Tsuyoshi Masumoto
Keyword(s):  
Curie Temperature ◽  
Amorphous Alloys ◽  
Enthalpy Relaxation ◽  
Temperature Behavior

Anneal-induced enthalpy relaxation behaviour of amorphous (Pd0.7Ni0.3)83Si17 alloy by X-ray diffraction

1988 ◽  
Vol 7 (9) ◽  
pp. 1003-1006 ◽  
Author(s):  
Y. Waseda ◽  
E. Matsubara ◽  
M. Ohzora ◽  
A. P. Tsai ◽  
A. Inoue ◽  
...  
Keyword(s):  
Enthalpy Relaxation ◽  
Relaxation Behaviour ◽  
X Ray Diffraction ◽  
X Ray

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

Ion Beam Mixing of Ni-Ti Bilayered Thin Films

1985 ◽  
Vol 43 ◽  
pp. 290-291
Author(s):  
A. K. Rai ◽  
R. S. Bhattacharya ◽  
M. H. Rashid
Keyword(s):  
Crystal Structure ◽  
Thin Films ◽  
Amorphous Alloys ◽  
Ion Beam ◽  
Ion Bombardment ◽  
High Energy ◽  
Mixing Efficiency ◽  
Ion Beam Mixing ◽  
Enhanced Diffusion ◽  
Binary Metal

Ion beam mixing has recently been found to be an effective method of producing amorphous alloys in the binary metal systems where the two original constituent metals are of different crystal structure. The mechanism of ion beam mixing are not well understood yet. Several mechanisms have been proposed to account for the observed mixing phenomena. The first mechanism is enhanced diffusion due to defects created by the incoming ions. Second is the cascade mixing mechanism for which the kinematicel collisional models exist in the literature. Third mechanism is thermal spikes. In the present work we have studied the mixing efficiency and ion beam induced amorphisation of Ni-Ti system under high energy ion bombardment and the results are compared with collisional models. We have employed plan and x-sectional veiw TEM and RBS techniques in the present work.

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