Molybdenum lanthanum oxide is often the alloy of choice when embrittlement after recrystallization must be avoided along with assurance of dimensional shape stability at high-temperatures.
Listed below are some of the properties that make molybdenum lanthanum oxide an important material in high temperature applications.
| TYPICAL PHYSICAL PROPERTIES | ||
| Density | lb/in3 | 0.376 |
| g/cm3 | ≥10.1 | |
| Melting Point | °F | 4748 |
| °C | 2620 | |
| Electrical Resistivity | Microhm-cm | 5.17 |
| Thermal Conductivity | Cal/cm2/cm°C/sec | 0.35 |
| Specific Heat | Cal/gm/°C | 0.061 |
| Recrystallization Temp | °C (90% def) | 1300 |
| Coefficient of Linear Thermal Expansion | Micro-in/°F x 10-6 | 4.90 |
| Micro-in/°C x 10-6 | 2.70 | |
| Source: Plansee Brochures, www.plansee.com | ||
| TYPICAL MECHANICAL PROPERTIES | ||
| Tensile Strength (2mm Sheet; Longitudinal Direction) | KSI (MPa)- 20 °C | 70 (480) |
| KSI (MPa)- 1000 °C | 22 (150) | |
| KSI (MPa)- 1400°C | 12 (80) | |
| Elongation at Fracture A (2mm Sheet; Recrystallized: Longitudinal Direction) | %- 20°C | 15 |
| %- 1000°C | 20 | |
| %- 1400°C | 25 | |
| Typical Hardness | ||
| Recrystallized Sheet (MLR) 1mm | Vickers HV | ≤250 |
| Stress Relieved Sheet (MLS) | Vickers HV | ≤270 |
| Source: Plansee Brochures, www.plansee.com | ||
| CHEMISTRY | ||
| Minimum % | 99.30 - 99.70 Molybdenum (Mo) | 0.3 - 0.7 Lanthanum Oxide (La2O3) |