Molybdenum – Performance Stability in Extreme Environments
Molybdenum is a high-purity refractory metal used by Advanced Hermetic Solutions in hermetic designs where strength, dimensional stability, and resistance to thermal shock are mission-critical. Its low coefficient of expansion and conductivity make it ideal for aerospace, vacuum, and high-temperature sealing.
Material Properties
- Density: 10.22 g/cm³
- Melting Point: 2623°C (4753°F)
- Thermal Conductivity: 138 W/m·K
- Electrical Resistivity: 5.7 µΩ·cm
- Coefficient of Thermal Expansion: 5.35 µm/m·°C
- Tensile Strength: ~324 MPa
- Modulus of Elasticity: 330 GPa
- Hardness: ~225 Brinell / Rockwell B98
- Corrosion Resistance: Excellent in molten metals, reducing environments, and vacuum systems
- Vacuum Compatibility: Outstanding (low vapor pressure)
Applications in Hermetic Engineering
Vacuum Feedthroughs
Used in high-temperature ceramic-to-metal seals where expansion matching and vacuum integrity are critical.
Thermal Management in Aerospace
Ideal for propulsion modules and sensors near thrusters where thermal stress and conductivity must be balanced.
Semiconductor & Power Electronics
Acts as a heat spreader and support plate in high-voltage hermetic devices and ceramic-insulated power modules.
Brazed High-Vacuum Assemblies
Preferred in furnace-brazed metal-to-ceramic assemblies requiring strength and thermal cycle stability.
High-Reliability Sensors
Used in harsh environment sensors for aerospace, nuclear, and fusion where metals must not outgas or deform.
X-ray & Imaging Components
Applied in electron-beam and diagnostic modules requiring radiation resistance and vacuum compatibility.
Integrate Molybdenum in Your Hermetic Design
From aerospace-grade feedthroughs to vacuum-insulated packaging, Advanced Hermetic Solutions provides engineering support for molybdenum brazing, assembly, and prototyping. Contact us to get started.
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