Giant anhysteretic response of ferroelectric solid solutions with morphotropic boundaries: the role of polar anisotropy

2012 ◽  
Vol 25 (4) ◽  
pp. 429-440 ◽  
Author(s):  
Yong Ni ◽  
Armen G. Khachaturyan
Keyword(s):  
Solid Solutions ◽  
Polar Anisotropy

Role of Mechanical Stresses at Ion Implantation of CdHgTe Solid Solutions

2013 ◽  
Vol 58 (9) ◽  
pp. 872-880 ◽  
Author(s):  
Smirnov A.B. Smirnov A.B. ◽  
◽  
Lytvyn O.S. Lytvyn O.S. ◽  
Morozhenko V.A. Morozhenko V.A. ◽  
Savkina R.K. Savkina R.K. ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Solid Solutions ◽  
Mechanical Stresses

scholarly journals Моделирование твердых растворов NaGd(MoO-=SUB=-4-=/SUB=-)-=SUB=-2-=/SUB=-- NaEu(MoO-=SUB=-4-=/SUB=-)-=SUB=-2-=/SUB=- и Na-=SUB=-2-=/SUB=-Gd-=SUB=-4-=/SUB=-(MoO-=SUB=-4-=/SUB=-)-=SUB=-7-=/SUB=--Na-=SUB=-2-=/SUB=-Eu-=SUB=-4-=/SUB=-(MoO-=SUB=-4-=/SUB=-)-=SUB=-7-=/SUB=- методом межатомных потенциалов

2019 ◽  
Vol 61 (4) ◽  
pp. 678
Author(s):  
В.Б. Дудникова ◽  
Е.В. Жариков ◽  
Н.Н. Еремин
Keyword(s):  
Solid Solutions ◽  
Atomistic Simulation ◽  
Statistical Distribution ◽  
Partial Ordering ◽  
Interatomic Potentials ◽  
Vibrational Entropy ◽  
Solid State Lasers ◽  
General Utility ◽  
Gadolinium Molybdate

AbstractSimulation of the solid solutions in the system of double sodium–gadolinium and sodium–europium molybdates, which are promising matrices for solid state lasers and phosphors has been carried out by the method of interatomic potentials. Two types of solid solutions have been studied, one of which contains finite components corresponding to the stoichiometric NaGd(MoO_4)_2–NaEu(MoO_4)_2 compositions with statistical distribution of cations in the crystal lattice. Another object is a cation-deficient Na_2Gd_4(MoO_4)_7–Na_2Eu_4(MoO_4)_7 system, in which we have examined the variants of statistical distribution and partial ordering of cations over structural positions. Atomistic simulation has been performed using the GULP 4.0.1 software package (General Utility Lattice Program). It is shown that when we pass from sodium-gadolinium molybdate to sodium-europium molybdate, both of stoichiometric and cation-deficient compositions, an increase in the unit cell volume is observed, while the density of the crystal, the energy of interatomic interactions in the structure, the vibrational entropy and the heat capacity decrease along with increasing europium content. The energy of interatomic interactions in the structure for cation-deficient solid solutions is less than for stoichiometric ones. Other aforementioned characteristics for cation-deficient solid solutions have greater values than for stoichiometric ones. The role of cluster europium centers in concentration quenching in NaGd(MoO_4)_2–NaEu(MoO_4)_2 solid solutions has been examined.

The Role of Grain Size on the Work-Hardening Characteristics of Cu-Al Solid Solutions

1988 ◽  
pp. 329-335
Author(s):  
A. Z. Mohamed ◽  
M. M. Mostafa ◽  
M.S. Sakr ◽  
A. A. El-Daly
Keyword(s):  
Grain Size ◽  
Solid Solutions ◽  
Work Hardening

scholarly journals The Role of ZnP2 Nanoclusters in the Vibrational Properties of Cd x Zn(1 − x)P2 Solid Solutions

2016 ◽  
Vol 11 (1) ◽  
Author(s):  
K. Shportko ◽  
T. Shoukavaya ◽  
V. Trukhan ◽  
J. Baran ◽  
S. Starik ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Vibrational Properties

scholarly journals Role of different factors affecting interdiffusion in Cu(Ga) and Cu(Si) solid solutions

2014 ◽  
Vol 470 (2161) ◽  
pp. 20130464 ◽  
Author(s):  
Sangeeta Santra ◽  
Hongqun Dong ◽  
Tomi Laurila ◽  
Aloke Paul
Keyword(s):  
Solid Solutions ◽  
Diffusion Coefficients ◽  
Tracer Diffusion ◽  
Impurity Diffusion ◽  
Factors Affecting ◽  
The Matrix ◽  
Bond Strengths ◽  
Interdiffusion Coefficients ◽  
Formation Energies

A detailed diffusion study was carried out on Cu(Ga) and Cu(Si) solid solutions in order to assess the role of different factors in the behaviour of the diffusing components. The faster diffusing species in the two systems, interdiffusion, intrinsic and impurity diffusion coefficients, are determined to facilitate the discussion. It was found that Cu was more mobile in the Cu–Si system, whereas Ga was the faster diffusing species in the Cu–Ga system. In both systems, the interdiffusion coefficients increased with increasing amount of solute (e.g. Si or Ga) in the matrix (Cu). Impurity diffusion coefficients for Si and Ga in Cu, found out by extrapolating interdiffusion coefficient data to zero composition of the solute, were both higher than the Cu tracer diffusion coefficient. These observed trends in diffusion behaviour could be rationalized by considering: (i) formation energies and concentration of vacancies, (ii) elastic moduli (indicating bond strengths) of the elements and (iii) the interaction parameters and the related thermodynamic factors. In summary, we have shown here that all the factors introduced in this paper should be considered simultaneously to understand interdiffusion in solid solutions. Otherwise, some of the aspects may look unusual or even impossible to explain.

Role of symmetry in the formation of n-paraffin solid solutions

1987 ◽  
Vol 20 (11) ◽  
pp. 2782-2788 ◽  
Author(s):  
Douglas L. Dorset
Keyword(s):  
Solid Solutions
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