Research Progress of Yttria Coatings for Engineering Applications

Yttria coatings, as a key component of Rare Earth oxide coatings, offer wear resistance, high-temperature stability, and corrosion resistance, playing a vital role in key sectors such as aerospace, electronic communications, and the atomic energy industry. However, given the diverse service environments of engineering materials, traditional Y2O3 thermal barrier coatings are no longer able to meet these complex service requirements. These coatings exhibit poor coating stability, large failure areas, and significantly reduced service life, severely limiting their further adoption in engineering applications.

Chemical coprecipitation is currently a common method for mass production of Y2O3. Typically, Y2O3 prepared by this method requires sintering before it can be used in protective coatings. However, due to the limitations of the sintering process itself, the resulting Y2o3 Powder contains varying degrees of micropores at both grain boundaries and within the crystal faces, resulting in an inability to achieve a fully dense coating, thereby reducing the coating's resistance to thermal cycling shock and corrosion. Therefore, to address these deficiencies, researchers have proposed a series of spraying process optimization and control strategies that effectively address the issue of low coating density and have successfully applied this type of coating in engineering applications.

Researchers have successfully fabricated Y2O3 coatings suitable for various operating conditions using atmospheric plasma spraying and laser cladding techniques. These coatings have been applied to the protection of engineering materials such as tantalum, niobium, and graphite, significantly improving the service life of these materials under conditions of frequent thermal cycling shock and high-temperature liquid metal corrosion. Future research should focus on developing the combined use of established surface treatment technologies such as plasma spraying, chemical vapor deposition, and ion plating to achieve new breakthroughs in Y2O3 coating preparation.

Suzhou KP Chemical Co., Ltd can provide Y2O3 coating related compounds such as Yttrium oxide, Ytterbium oxide, Samarium oxide, Gadolinium oxide, Cerium(IV) oxide, Zirconium(IV) oxide, Aluminum oxide, Cesium chloride, Cesium carbonate, Rubidium carbonate and Rubidium chloride. Please contact info@szwww.kpchemmaterial.com or 086-18915544907.