Related Experiment Video
Updated: Jun 3, 2025

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
Published on: October 27, 2018
Improving Corrosion Resistance of Rare Earth Zirconates to Calcium-Magnesium-Alumina-Silicate Molten Salt Through
Cong Gui1, Zi-Jian Peng1, Jun-Teng Yao1
1School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
Abstract:
The erosion caused by high-temperature calcium-magnesium-alumina-silicate (CMAS) has emerged as a critical impediment to the advancement of thermal barrier coating (TBC). In this study, a series of high-entropy rare earth zirconates, (La0.2Sm0.2Dy0.2Er0.2Gd0.2)2(Zr1-Ce)2O7 (x = 0, 0.2, 0.4, 0.5) were synthesized through a solid-phase reaction, and their corrosion behavior against CMAS was investigated. Our findings demonstrate that numerous rare earth elements impede element diffusion, facilitate the formation of a compact oxide layer, and effectively hinder CMAS infiltration. Furthermore, rare earth elements with larger ionic radii exhibit enhanced solubility in apatite, whereas those with smaller ionic radii are more readily soluble in ZrO2. In general, the utilization of the high-entropy strategy is an effective approach to significantly improving corrosion resistance against CMAS.
More Related Videos
11:14Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
07:13High Temperature Fabrication of Nanostructured Yttria-Stabilized-Zirconia YSZ Scaffolds by In Situ Carbon Templating Xerogels
Published on: April 16, 2017
Related Concept Videos
Corrosion of Reinforcement
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
Ionic Strength: Effects on Chemical Equilibria
In this solution, the primary...
Strength and Heat of Hydration
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
Qualitative Analysis
For instance, group IV...
Factors Affecting Solubility
Effect of Sea Water on Concrete
Concrete in areas between tide marks,...