Recubrimientos cerámicos de barrera térmica
Palabras clave:
Recubrimientos de barrera térmica, turbinas a gas, YSZ, desgaste, corrosión, alta temperaturaResumen
El desarrollo de la tecnología de recubrimientos de barrera térmica es importante debido a las propiedades que posee, lo que incrementó la aplicabilidad y uso en diferentes disciplinas industriales. En la actualidad su utilidad más explorada y más estudiada es su aplicación en turbinas de gas, e industria aeroespacial, donde las condiciones de operación son severas, y en las cuales los materiales deben soportar condiciones a altas temperaturas, degradación por corrosión, esfuerzos térmicos y mecánicos. Los materiales utilizados ahora en los componentes de las turbinas de gas forman un sistema de una capa cerámica con una composición química de circonia estabilizada con itria y una capa de anclaje de MCrAlY. La función principal de los recubrimientos es aumentar la resistencia a la alta temperatura y disminuir la conductividad térmica exterior - sustrato. En el presente trabajo se aborda de manera general la historia, desarrollo y perspectivas de estos recubrimientos, dar a conocer los beneficios tecnológicos e innovación del estudio y mejoramiento de esos materiales.
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Referencias bibliográficas
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