| Catalogue Code | IN-ScZ |
| CAS No. | 151575-30-3 |
| Chemical Formula | 90wt%(Sc0.1Zr0.9 oxide)/10wt%Al2O3 |
| Compound Name | Scandia-Stabilized Zirconia/Alumina |
| Surface Area (m2/g) | 5-10 |
| Particle size d50 (μm) | <1 |
| Purity (%) | >=99.9 |
| Customization Available | Sc2O3 stabilized ZrO2/Al2O3 (Custom Composition) |
Introduction
Scandia-Stabilized Zirconia/Alumina (90wt%(Sc₀.₁Zr₀.₉O₂)/10wt%Al₂O₃) is a promising material for solid oxide fuel cells (SOFCs). It combines the excellent ionic conductivity of scandia-stabilized zirconia (ScSZ) and the enhanced mechanical properties of alumina. The high zirconia content ensures superior ionic conductivity. At the same time, the small addition of scandium stabilizes the zirconia phase at high temperatures, making the material more robust and resistant to thermal degradation. Alumina further strengthens the composite, improving its thermal shock resistance and mechanical integrity. The purity of the material is critical, as it ensures minimal impurities that could hinder its electrochemical performance and long-term stability in fuel cell environments. With its excellent ionic conductivity, thermal stability, and mechanical properties, this composite material is ideal for enhancing the efficiency and durability of fuel cells operating under high-temperature conditions.
Properties of Scandia-Stabilized Zirconia/Alumina
The properties of Scandia-Stabilized Zirconia/Alumina are as follows:
| Properties | Details |
| Appearance | Powder |
| Ionic conductivity | 2.89 Sm−1 |
| Molar Mass | 152.179 g/mol |
Applications
- It is employed as an electrolyte material in solid oxide fuel cells (SOFCs), increasing fuel-to-electricity conversion efficiency.
- It enhances a fuel cell’s mechanical strength and eco-efficiency and reduces the likelihood of failure by thermal stress or physical damage.
- Scandia-stabilized zirconia and alumina contribute to reducing the material’s thermal expansion mismatch with other fuel cell materials, resulting in better compatibility at the interface and longer-lasting fuel cells.
- It is used as an anode material in cermet fuel cells, enhancing the properties of the cermet materials and improving the electrochemical reactions and overall fuel cell performance.
- The material exhibits low chemical degradation under both reducing and oxidizing conditions and can, hence, be used as both anode and electrolyte in fuel cells.
- Its phase stability enhances the durability and performance of fuel cells, particularly in the high-temperature setting of SOFC systems.
- Scandia-stabilized zirconia/alumina can also be applied to IT-SOFCs that have improved performance at lower operation temperatures but with improved efficiency.
FAQs
Answere: The material’s high ionic conductivity, mechanical strength, and thermal stability make it ideal for demanding applications in energy conversion and ceramic manufacturing.
Answere: Scandia-stabilized zirconia has more excellent ionic conductivity and mechanical strength than yttria-stabilized zirconia, making it more effective for high-performance applications.
Answere: Yes, it can be effectively combined with other ceramics and metals in various composite applications, enhancing overall performance.
sachin
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