A THERMODYNAMIC APPROACH OF STRUCTURAL SECOND-ORDER PHASE TRANSITION AND THE DISCONTINUITY OF THE SPECIFIC HEAT IN SOLIDS

Conteúdo do artigo principal

Michael de Melo
Angelo Rober Pulici

Resumo

The purpose of this work is simply to present the thermodynamic theory of the structural phase transition in solids. Second-order phase transition will be described in detail as well as the evaluation of entropy and the specific heat of a physical system when undergoing a structural transition. It was found that lowering the temperature from higher temperature (above Curie temperature) the entropy decreases continuously, indicating a decreasing of number of accessible states in this specific thermal condition and structure rearrangement. The specific heat has showed to be discontinuously in  and increase linearly with temperature.

Detalhes do artigo

Seção
EXATAS E TECNOLÓGICAS

Referências

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