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Molybdenum lanthanum alloy sheet

Molybdenum lanthanum alloy is a high-performance molybdenum based material strengthened by rare earth oxide dispersion. It has significant advantages in high temperature creep resistance, recrystallization temperature, and processing performance.
Product details

Application Fields

High temperature furnace thermal field components:

Heat shield/reflector:Utilizing high melting point and low thermal expansion coefficient(5.3×10⁻⁶/℃)to reduce thermal deformation.

Sintering tray:used for powder metallurgy below 1600℃to avoid contamination(La₂O∝chemical inertness).

Electronic industry:

Semiconductor heater:High purity molybdenum lanthanum alloy(total impurities&lt;50ppm)is used for single crystal silicon growth.

Electron tube grid:optimized thermal electron emission performance.

Aerospace:

Rocket nozzle lining:Short term resistance to 2000℃gas erosion(requires anti-oxidation coating).

Key points of sheet metal processing technology

Thickness control:

Conventional board:0.1-5mm(surface roughness Ra≤0.8μm).

Ultra thin foil material:0.02~0.1mm(requires multiple passes of rolling and intermediate annealing).

Welding and connection:

Electron beam welding(vacuum environment)or brazing(using Ti Zr Ni brazing material,900℃).

Precautions for use

High temperature limit:

Long term use≤1800℃(≤600℃in oxidizing atmosphere).

Mechanical processing:

Recommended diamond cutting tools(cutting speed 30-50m/min).

Surface treatment:

Nickel plating:improves low-temperature oxidation resistance(400~600℃).

Silicification treatment:Form MoSi₂coating(resistant to oxidation at 1700℃).