Material Properties
| Property | Unit | Standard | A998 | 3YTZP | ZTA8 |
|---|---|---|---|---|---|
| Chemistry | Document | - - - | |||
| Microstructure | Image | - - - | JPG | JPG | JPG |
| Physical Properties | |||||
| Composition (A) | weight % | 99.7% Al2O3 | 5.4% Y2O3 | 85% Al2O3 | |
| Bulk Density | g/cm3 | ASTM 2320 | 3.89 | 6.01 | 4.2 |
| Porosity | volume % | ASTM D4404 | 0% (B) | 0% (B) | 0% (B) |
| Grain Size (C) | micron, μm | ASTM E112 | 4 | 1 | 1 |
| Color | Ivory | White | Tan | ||
| Mechanical Properties | |||||
| Hardness, Vickers | GPa | All 5 kg U.O.S. | 9.66 | 12.32 | 12.48 |
| 4-point Bend Strength (MOR) |
MPa | ASTM C1161 | 365 | 793 | 568 |
| K1C | MPa·m1/2 | ASTM C1421 | 4 | 8.40 | 6.55 |
| Thermal Properties | |||||
| Service Temperature (in Air) |
°C | No Load Cond. |
1650° | 1500° | 1650° |
| Coefficient of Thermal Expansion (CTE) |
°C-1 (25-1000°C) | ASTM C372 | 8.4 x 10-6 | 10 x 10-6 | 8.3 x 10-6 |
| Thermal Conductivity (20°C) |
W/m·°K | ASTM C408 | 30 | 2.2 | 27 |
| Electrical Properties | |||||
| Dielectric Strength |
Volts/mil | ASTM D149 | 220 | 228 | 228 |
| Dielectric Constant |
@1MHz @ 20°C | ASTM D150 | 9.8 | 29 | 10.6 |
| Volume Resistivity |
Ohm·cm @ 25°C | ASTM D1829 | >1014 | 1013 | >1014 |
| Ohm·cm @ 300°C | ASTM D1829 | >1011 | >104 | >109 | |
| Ohm·cm @ 500°C | ASTM D1829 | >107 | <103 | >106 | |
- Controlled by the Batch Composition
- Impervious
- Electron Microscope, Scanning- Tescan Lyra3 GMU FIB SEM, University of New Hampshire, 2019
Other formulations are available. Please contact us for more information.
Properties not recorded are in testing.