Gd2O3-Yb2O3-modified La2Zr2O7-(Zr0.92Y0.08) O1.96 multiphase thermal barrier coating material

The invention discloses a Gd2O3-Yb2O3-modified La2Zr2O7-(Zr0.92Y0.08) O1.96 multiphase thermal barrier coating material. According to the multiphase thermal barrier coating material, Gd3+ replaces La3+ in La Zr2O7 to form (La, Gd) 2 Zr2O7, and Gd3+ and Yb3+ replace Zr4+ in (Zr0.92Y0.08) O1.96 to for...

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Bibliographische Detailangaben
Hauptverfasser:	SU BINGYE, LI YAOFEI, LI YUAN, CHEN YANMEI, JIANG KUO, LIAN XIAOWEN, LIU SONGBAI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	The invention discloses a Gd2O3-Yb2O3-modified La2Zr2O7-(Zr0.92Y0.08) O1.96 multiphase thermal barrier coating material. According to the multiphase thermal barrier coating material, Gd3+ replaces La3+ in La Zr2O7 to form (La, Gd) 2 Zr2O7, and Gd3+ and Yb3+ replace Zr4+ in (Zr0.92Y0.08) O1.96 to form cubic phase (Zr, Gd, Y, Yb) O2-delta, therefore, heat conductivity of materials is reduced, stability of phases is improved, thermal barrier effect and operating temperature of coating are improved, and heat circulating service life is prolonged. The multiphase thermal barrier coating material is prepared through a reaction in-situ self-generation method, and the content of monoclinic zirconia phase after the modified material is calcined for 100 hours under 1450 DEG C decreases to 0mol% from 49mol% before modification, and the modified material can bear 1400 DEG C sintering.