Compositions of Congruently Melting Three-Component Solid Solutions Determined by Finding Acnodes on Ternary-System Fusion Surfaces

1996 ◽  
pp. 103-116 ◽  
Author(s):  
P. P. Fedorov
Keyword(s):  
Ternary System ◽  
Solid Solutions ◽  
Congruently Melting

scholarly journals Analysis of Correlation between Density Variations and Defect Structure of W6+ : LiTaO3

2018 ◽  
Vol 63 (4) ◽  
pp. 347 ◽  
Author(s):  
M. Tahiri ◽  
A. Jennane ◽  
N. Masaif ◽  
E. M. Lemdek ◽  
E. M. Lotfi
Keyword(s):  
Ternary System ◽  
Solid Solutions ◽  
Theoretical Approach ◽  
Defect Structure ◽  
Dopant Concentration ◽  
Lithium Tantalate ◽  
Experimental Results ◽  
Substitution Mechanism

We investigate the defect structure of non-stoichiometric solid solutions of WO3-doped LiTaO3 in correlation with the evolution of the density within our theoretical approach. The dopant concentration and the mechanism of substitution, which depends of the ionic rays of different cations that exit into the network, have an effect on crystalline parameters and, consequently, on the density. In order to explain the defect structure of solid solutions synthesized in the ternary system Li2O–Ta2O5–(WO3)2 in a vicinity of LiTaO3,, we have shown a convergence between theoretical and experimental results by the application of our theoretical approach combined with the new proposed vacancy models. We conclude that the new vacancy models are able to describe the defect structure and the substitution mechanism in each solid solutions of WO3-doped lithium tantalate.

Structure, Grains Structure and Dielectric Responses of the Ternary System Solid Solutions (Bi1−X−Y Pb x+Y )(Fe1−X/2−Y Ti y Nb x/2)O3

2017 ◽  
pp. 179-189
Author(s):  
E. V. Glazunova ◽  
N. A. Boldyrev ◽  
L. A. Shilkina ◽  
Larisa A. Reznichenko ◽  
A. V. Nagaenko ◽  
...  
Keyword(s):  
Ternary System ◽  
Solid Solutions

The Liquidus Surface of the Ternary System Cu-In-Ti

2005 ◽  
Vol 502 ◽  
pp. 95-98 ◽  
Author(s):  
Adina Berbecaru ◽  
Julius C. Schuster
Keyword(s):  
Liquid Phase ◽  
Ternary System ◽  
Liquidus Surface ◽  
Ternary Eutectic ◽  
Reaction Scheme ◽  
Lead Free ◽  
Arc Melting ◽  
Congruently Melting ◽  
Xrd Phase Analysis ◽  
Primary Crystallisation

The phases occurring upon lead free soldering of copper substrates using indium, which contains for improved wetting additions of Ti, belong to the ternary system Cu-In-Ti. Thus, the liquidus surface of the ternary system Cu-In-Ti is determined using DTA data. Alloys were prepared from high purity metals by arc melting under pure argon. Before measuring the heating curves, all alloys were equilibrated at appropriate temperatures and XRD phase analysis were performed. A reaction scheme linking the phase equilibria found in the annealed alloys to the liquid phase is obtained. A projection of the resulting liquidus surface, which is dominated by the primary crystallisation field of the congruently melting Heusler phase t1-Cu2TiAl, is presented. In the In-rich composition corner the liquid phase solidifies in a ternary eutectic (In) + Ti2In5 + Cu11In9 at 155°C.

Sign in / Sign up

Export Citation Format

Share Document