Simulação computacional e propriedades termodinâmicas no sistema LiF-YF3
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2010
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ENCONTRO DA SOCIEDADE BRASILEIRA DE CRESCIMENTO DE CRISTAIS, 8.
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Resumo
Equilibrium phase diagram and thermodynamic properties of the LiF-YF3 binary system were
studied. The experimental phase diagram of this system is well known, nevertheless, the
thermodynamic properties of the formed intermediate compound LiYF4 (YLF) have not been
investigated. In this work, the LiF-YF3 binary phase diagram was optimized by fitting of the Gibbs
energy function taking into account the known experimental data. The Gibbs energy functions for
the end member compounds were taken from the literature. The excess Gibbs energy terms in the
liquid phase, which describe the effects of interaction between the two fluoride compounds, were
expressed by the Redlich–Kister polynomial function. Phase equilibrium data in the LiF-YF3 system
were obtained by differential thermal analysis (DTA) and compared to data from the literature. The
heat capacity (Cp) as function of temperature, enthalpy of formation and entropy at 298.15 K were
assessed for the YLF compound.
Como referenciar
SANTOS, I.A. dos; KLIMM, D.; RANIERI, I.M. Simulação computacional e propriedades termodinâmicas no sistema
LiF-YF3. In: ENCONTRO DA SOCIEDADE BRASILEIRA DE CRESCIMENTO DE CRISTAIS, 8., 8-10 de setembro, 2010, Sao Carlos, SP. Anais... Disponível em: http://repositorio.ipen.br/handle/123456789/16028. Acesso em: 19 Feb 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.