Attribute：
Lanthanum tungsten alloy is an alloy made by adding Lanthanum Oxide into molybdenum. Molybdenum Lanthanum has the properties of higher temperature of recrystallization, better ductility, and excellent wear-resistant. Molybdenum (Mo) is gray-metallic and has the third highest melting point of any element next to tungsten and tantalum. It is found in various oxidation states in minerals but does not occur naturally as a free metal. Molybdenum is well-known for its strength and stability in high-heat applications. It is often alloyed with other compounds to improve corrosion resistance and strength at high temperatures. Consequently, molybdenum is frequently used for making steel alloys, high strength alloys, and superalloys. Molybdenum compounds usually have a low solubility in water. Industrially, they are used in high-pressure and high-temperature applications such as pigments and catalysts.
Parameter：
| Thickness mm | Width mm | Length mm |
| <0.1 | 150 | L |
| 0.10-0.15 | 300 | 1000 |
| 0.15-0.20 | 400 | 1000 |
| 0.20-0.30 | 650 | 2540 |
| 0.30-0.50 | 650 | 2540 |
| 0.50-01.0 | 650 | 2540 |
| 1.0-2.0 | 600 | 2000 |
| 2.0-3.0 | 600 | 2000 |
| >3.0 | 600 | L |
Product Characteristics of Lanthanum Tungsten Alloy :
1.Excellent high-temperature resistance
Retains stable physical and mechanical properties under ultra-high temperature environments, with an extremely high melting point close to pure tungsten, not easy to soften or deform at extreme heat.
2.Superior electron emission performance
Rare earth lanthanum doping effectively reduces the electron work function; it can emit electrons stably at lower operating temperatures, with strong emission efficiency and long service life.
3.Outstanding anti-sputtering & anti-ablation capacity
Dense alloy microstructure greatly resists ion sputtering and arc ablation, less material loss during long-term arc discharge, effectively avoiding electrode surface damage.
4.Stable arc starting performance
Easy to ignite electric arcs under low voltage and low current; the arc flame is concentrated, uniform and stable, with no arc breaking or drifting during continuous working.
5.Good mechanical processing property
Compared with pure tungsten, lanthanum tungsten alloy has improved ductility and machinability, supporting cutting, drilling, stamping and fine deep processing into rods, sheets, wires and electrodes.
6.Low evaporation rate at high temperature
Low volatile loss under high-temperature working conditions, no obvious material vaporization pollution to surrounding components, ensuring clean operating environment.
7.Strong oxidation resistance
Lanthanum element forms a compact protective oxide film on the alloy surface at high temperature, slowing down internal oxidation and prolonging the service cycle of finished products.
8.Stable chemical inertness
Hard to react with most common gases and molten metals; maintains stable performance in vacuum, inert gas and partial weak oxidizing atmosphere.
9.Long service lifespan
Combines the high-temperature advantage of tungsten and the functional optimization of rare earth lanthanum; its service life is several times longer than pure tungsten electrodes in welding, cutting and vacuum electronic applications.
10.Wide application adaptability
Available in various specifications including wires, bars, plates, foils and customized special-shaped parts, widely applicable to TIG welding electrodes, plasma cutting, vacuum tube cathodes, thermal emission devices and high-temperature furnace components
Applications：
Lanthanum tungsten alloy is an ideal material for applications requiring dimensional stability and strength at temperatures above the capabilities of either pure Molybdenum or TZM alloy. Molybdenum-lanthanum alloy is often used in illumination, electric vacuum device, tube component in cathode-ray pipe, power semiconductor device, internal part in light bulbs, etc.
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