Molybdenum-Lanthanum Wire
![]() |
![]() |
Molybdenum-Lanthanum Wire (Mo-La Wire) is a high-performance alloy wire made from high-purity molybdenum doped with a small amount of lanthanum or lanthanum oxide (La₂O₃). The addition of lanthanum improves the microstructure of molybdenum, enhancing its high-temperature performance, creep resistance, and recrystallization temperature. Mo-La wire is widely used in high-temperature applications such as lighting, vacuum electronics, furnace components, and aerospace parts.
1. Chemical Composition
Element | Typical Content (wt%) |
Molybdenum (Mo) |
≥ 99.90% |
Lanthanum Oxide (La₂O₃) |
0.3–1.2% |
Other Impurities |
≤ 0.05% (total) |
2. Key Properties
Melting Point: ~2623°C (same as pure molybdenum)
Recrystallization Temperature: 1400–1600°C (higher than pure Mo at ~1100°C)
Creep Resistance: Excellent high-temperature mechanical strength and dimensional stability
Ductility: Improved ductility and workability due to refined grain structure
Oxidation Resistance: Better than pure molybdenum in oxidative atmospheres
Formability: Suitable for fine wire drawing and complex forming
3. Typical Applications
Lighting Industry
Filaments, support wires, and coiled wires for halogen, HID, and automotive lamps
High-lumen, long-life lamp components
Vacuum Electronic Devices
Cathode supports, grid wires, electrode frameworks in electron tubes and microwave devices
High-Temperature Furnaces
Heating elements, hooks, hangers, and structural components in vacuum or inert atmosphere furnaces
Aerospace and Nuclear Applications
High-temperature supports and heat shields under extreme thermal and mechanical loads
Crystal Growth and Semiconductor Equipment
Hot zones, seed holders, and frame materials in Czochralski furnaces
If there is any inquiry of molybdenum, please feel free to contact us by email: sales@chinatungsten.com, sales@xiamentungsten.com or by telephone:86 592 512 9696/86 592 512 9595.