| Issue |
Europhys. Lett.
Volume 71, Number 5, September 2005
|
|
|---|---|---|
| Page(s) | 770 - 775 | |
| Section | Condensed matter: structural, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i2005-10152-9 | |
| Published online | 03 August 2005 | |
The eutectic composition on
x
phase diagram:
A molecular-dynamics study
1
Instituto de Física de São Carlos, Universidade de São Paulo Av. Trabalhador Sancarlense 400, 13560-970, São Carlos, SP-Brazil
2
Departamento de Física, Universidade Federal de São Carlos 13565-905, São Carlos, SP-Brazil
Received:
5
April
2005
Accepted:
4
July
2005
A eutectic composition was observed, for the first time using
molecular-dynamics (MD) simulation, for the
x solid solutions.
Simulations were performed on melting and cooling processes on
these solid solutions for various compositions. It was observed
that the initial addition of cadmium fluoride to the lead
fluoride cubic lattice decreases the melting temperature of the
resulting solid solution, leading to a eutectic composition with
, in perfect accord with experimental data. Solid
solutions with higher cadmium concentrations present higher
melting temperatures. Simulations on cooling from the melt, at
various rates, indicate that the eutectic composition has a better
glass-forming ability than the others compositions.
PACS: 61.43.Bn – Structural modeling: serial-addition models, computer simulation / 65.40.-b – Thermal properties of crystalline solids / 66.30.-h – Diffusion in solids
© EDP Sciences, 2005
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