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	<div id="articleTitle"><h3>Diagramas y transformaciones de fase. 2. Fundamentos termodinámicos, sistemas de un componente, sistemas binarios y ternarios.</h3></div>
	<div id="authorString"><em>Mª Concepción Merino Casals</em></div>
	<br />
			<div id="articleAbstract">
		<h4>Resumen</h4>
		<br />
		<div>En este tema suponemos que el alumno está familiarizado con los conceptos termodinámicos básicos, por lo que solo se va a plantear un recordatorio de los conceptos necesarios para entender los diagramas de fases en sistemas condensados. Se plantea la aplicación de la regla de las fases a estos sistemas condensados y se deduce la termodinámica de las soluciones en estado sólido. Se definen los distintos equilibrios de tres fases. Se emplea el concepto de entalpía de mezcla y entropía de mezcla y potencial químico. A partir de los diagramas de energía libre composición se trazan los diagramas de fases tanto binarios como ternarios. Además se explica su utilización para predecir el sentido de una determinada transformación en estado sólido.</div>
		<br />
		</div>
	
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		<h4>Palabras clave</h4>
		<br />
		<div>Termodinámica de soluciones; Diagramas de fases binarios; Diagramas de fase ternarios;</div>
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