Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CMAS-resisting ceramic layer and slurry method for preparing CMAS-resisting ceramic layer
The invention discloses a CMAS-resisting ceramic layer and a slurry method for preparing the CMAS-resisting ceramic layer, and belongs to the field of thermal barrier coating materials and preparation for the same. The CMAS-resisting ceramic layer is a LaPO4 ceramic layer. The slurry method is used for preparing the LaPO4 ceramic layer on a YSZ ceramic layer, and the wettability of the LaPO4 ceramic layer to molten CMAS is poor; after thermal treatment of 1250 DEG C is carried out, a mutual reaction layer is formed on the interface between the LaPO4 ceramic layer and the CMAS, so that further permeation of the molten CMAS is effectively prevented, and the original phase stability of the YSZ ceramic layer is maintained. Accordingly, the prepared LaPO4 ceramic layer can prevent permeation of the molten CMAS, has superior CMAS corrosion resistance and obviously prolongs the service life of a thermal barrier coating under the CMAS coupling effect.
CMAS-resisting ceramic layer and slurry method for preparing CMAS-resisting ceramic layer
The invention discloses a CMAS-resisting ceramic layer and a slurry method for preparing the CMAS-resisting ceramic layer, and belongs to the field of thermal barrier coating materials and preparation for the same. The CMAS-resisting ceramic layer is a LaPO4 ceramic layer. The slurry method is used for preparing the LaPO4 ceramic layer on a YSZ ceramic layer, and the wettability of the LaPO4 ceramic layer to molten CMAS is poor; after thermal treatment of 1250 DEG C is carried out, a mutual reaction layer is formed on the interface between the LaPO4 ceramic layer and the CMAS, so that further permeation of the molten CMAS is effectively prevented, and the original phase stability of the YSZ ceramic layer is maintained. Accordingly, the prepared LaPO4 ceramic layer can prevent permeation of the molten CMAS, has superior CMAS corrosion resistance and obviously prolongs the service life of a thermal barrier coating under the CMAS coupling effect.
CMAS-resisting ceramic layer and slurry method for preparing CMAS-resisting ceramic layer
GUO HONGBO (Autor:in) / WANG HONG (Autor:in) / GONG SHENGKAI (Autor:in) / XU HUIBIN (Autor:in)
11.11.2015
Patent
Elektronische Ressource
Englisch
CERAMIC THERMAL BARRIER COATING SYSTEM COMPRISING A LAYER PROTECTING AGAINST CMAS
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