YSZ (Yttria-stabilized Zirconia)
YSZ (Yttria-Stabilized Zirconia) is an oxide material in which zirconia is stabilized by the addition of yttria to its crystal structure. With high heat resistance and chemical stability, it exhibits excellent oxygen ion conductivity at high temperatures, making it widely used in applications such as fuel cells, high-temperature sensors, and substrates for thin film growth.
Characteristics
| Composition | Y2O3(10 mol%)-ZrO2(90 mol%) |
|---|---|
| Crystal system | Cubic |
| Crystal structure | CaF2 |
| Lattice constant | a=0.5139 nm |
| Melting point | 2500 ℃ |
| Density | 6.05 g/cm3(20 ℃) |
| Dielectric constant | 27 |
| Thermal expansion coefficient | 10.3×10-6/℃ |
Standard Specs
| Size (Outer size tolerance: ±0.1 mm / Thickness tolerance: ±0.05 mm) |
10×10×0.5 t 15×15×0.5 t |
|---|---|
| Orientation (Tolerance: ±0.5°) |
(100), (111) |
| Polishing | One-side / Both-side |
| Surface roughness | Ra≦1.0 nm Rmax≦5.0 nm |