Tungsten – Ultra-Dense, High-Temperature Sealing and Shielding
Tungsten (W) is one of the densest and most thermally stable metals available, making it ideal for hermetic applications in nuclear, aerospace, and plasma systems. Advanced Hermetic Solutions leverages tungsten’s unmatched mass efficiency and temperature resistance for extreme-environment engineering.
Material Properties
- Density: 19.25 g/cm³
- Melting Point: 3422°C (6192°F)
- Thermal Conductivity: 170–175 W/m·K
- Thermal Expansion: 4.2–4.6 µm/m·°C
- Electrical Resistivity: 5.3–5.7 µΩ·cm
- Tensile Strength: Up to 3900 MPa (in sintered form)
- Modulus of Elasticity: 340–405 GPa
- Hardness: 4500–8500 MPa (Vickers)
- Corrosion Resistance: Excellent at room temp; oxidizes at high temps unless inert atmosphere is used
- Radiation Shielding: Outstanding for X-ray, gamma, and neutron attenuation
Applications in Hermetic Engineering
Radiation-Shielded Feedthroughs
Tungsten enables compact, hermetic assemblies for nuclear medicine, particle physics, and high-energy diagnostics.
Fusion and High-Heat Vacuum Systems
Retains integrity above 3000°C and resists sputtering, ideal for plasma-facing components and fusion experiments.
Defense & Aerospace Enclosures
Provides EMI protection, thermal buffering, and kinetic shielding in ruggedized, space-limited hermetic packaging.
X-ray and Imaging Platforms
Used in sealed housings and collimators where dense shielding and heat tolerance are mission-critical.
Vacuum Brazed Subassemblies
Tungsten is brazed to ceramics or alloys for structural support in hermetically sealed, high-load environments.
Critical Satellite Components
Used in orbiting packages for mass damping, shielding, and high-thermal-load system balancing.
Build With Tungsten in Your Next Hermetic Design
AHS provides precision fabrication, brazing, and integration of tungsten into extreme-environment hermetic systems. Let’s solve your shielding and thermal challenges together.
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