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YSZ is best known as the standard material for thermal barrier coatings (TBCs) in gas turbines and jet engines. When applied as a top coating on superalloy components, YSZ’s extremely low thermal conductivity and high-temperature phase stability protect metallic substrates from excessive heat, significantly improving engine efficiency, durability, and service life. These advantages have made YSZ an indispensable material in the aerospace and power generation industries.
Another key application of YSZ powder is in solid oxide fuel cells (SOFCs), where it serves as the preferred electrolyte material. At elevated operating temperatures, YSZ exhibits high oxygen-ion conductivity while remaining electronically insulating, enabling efficient electrochemical reactions and stable power generation. In addition, YSZ is widely used in oxygen sensors, particularly lambda sensors for automotive exhaust systems and industrial furnaces, where its oxygen-ion transport capability allows precise monitoring and control of combustion processes to improve efficiency and reduce emissions.
Beyond these primary applications, YSZ is also utilized in advanced structural ceramics, dental restorations, and wear-resistant components, benefiting from its strength, toughness, and long-term stability.
YSZ (Y-PSZ) powder is produced using a self-propagating hydrolysis process, ensuring high purity, uniform particle size distribution, and excellent sintering performance. By precisely controlling the yttria (Y₂O₃) content, different grades of Y-PSZ powder can be supplied, with 3Y-PSZ as the standard product. Both compacted and non-compacted forms are available to meet various requirements. The physical properties of the powders are suitable for a wide range of forming processes, including dry pressing, isostatic pressing, injection molding, tape casting, and slip casting, providing flexible and reliable processing solutions.
| Product Code | FR-2Y | FR-2.5Y | FR-3Y | FR-4Y | FR-5Y | FR-8Y |
| ZrO₂%(+HfO₂) | 96.0 | 95.0 | 94.7 | 92.6 | 91.5 | 86.5 |
| Y₂O₃ (wt%) | 3.6±0.2 | 4.5±0.2 | 5.2±0.2 | 7.0±0.3 | 8.5±0.3 | 13.5±0.3 |
| Al₂O₃%≤ | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| SiO₂%≤ | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Fe₂O₃%≤ | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| CaO%≤ | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 |
| MgO%≤ | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 |
| TiO2%≤ | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 |
| Na₂O%≤ | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 | 0.005 |
| Cl-%≤ | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Usage Rate | - | * | *** | * | ** | ** |
| NOTE | *** stands for mostly commonly used. | |||||
YSZ offers extremely low thermal conductivity and high-temperature phase stability, which protects metallic engine components from extreme heat, thereby enhancing fuel efficiency and engine lifespan.
In SOFCs, YSZ acts as an electrolyte that provides high oxygen-ion conductivity at high temperatures while remaining electronically insulating, facilitating efficient electrochemical power generation.
According to technical specifications, the 3Y-PSZ (FR-3Y) grade is the standard and most commonly used product due to its balanced mechanical and thermal properties.
The powders are highly versatile and suitable for dry pressing, isostatic pressing, injection molding, tape casting, and slip casting processes.
Yes, YSZ is widely utilized in dental restorations and advanced structural ceramics thanks to its exceptional strength, toughness, and long-term biocompatible stability.
The self-propagating hydrolysis process ensures high chemical purity, uniform particle size distribution, and superior sintering performance across all grades.
