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Boron Foil (Light Tight)

Available Configurations

Properties common to all products in this list

Commodity: Metals Material: Boron Form: Foil (Light Tight) Composition: B CAS Number: 7440-42-8 Purity: 99.6% Side 1: 25mm Side 2: 25mm Coating: Uncoated Production Method: Hot Pressed Opacity: Light Tight Surface Finish: Standard
Boron Foil (Light Tight) combines the inherent mechanical strength, corrosion resistance, and low density of boron with a manufacturing process that ensures complete opacity to light. This makes it ideal for applications requiring absolute light exclusion alongside mechanical durability. Industries such as high-sensitivity optics, scientific instrumentation, and photonics benefit from its unique properties. Specific uses include shielding in optical detectors, protective casings in laser systems, and enclosures for photonic experiments where stray light can compromise results. In research, light-tight boron foil is crucial for creating controlled optical environments, ensuring experimental accuracy and repeatability. In industrial settings, its ability to block light while withstanding harsh conditions enhances both performance reliability and operational lifespan.
Starting at $1,180.00 each
No Minimum order Approx. 2 weeks leadtime Free technical support *Free delivery worldwide

Material Properties

Atomic Properties
Element Value
Atomic number 5
Crystal structure Tetragonal
Electronic structure He 2s² 2p¹
Valences shown 3
Atomic weight( amu ) 10.81
Thermal neutron absorption cross-section( Barns ) 672
Photo-electric work function( eV ) 4.5
Natural isotope distribution( Mass No./% ) 11/ 80.2
Natural isotope distribution( Mass No./% ) 10/ 19.8
Atomic radius - Goldschmidt( nm ) 0.097
Ionisation potential( No./eV ) 4/ 259
Ionisation potential( No./eV ) 2/ 25.2
Ionisation potential( No./eV ) 1/ 8.30
Ionisation potential( No./eV ) 5/ 340
Ionisation potential( No./eV ) 337.9
Mechanical Properties
Element Value
Hardness - Mohs 9.5
Material condition Arc melted
Tensile modulus( GPa ) 441
Tensile strength( MPa ) 1580-2410
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 1.8x10¹²@27°C
Physical Properties
Element Value
Boiling point( C ) 3700
Density( gcm⁻³ ) 2.34-2.37@20°C
Thermal Properties
Element Value
Melting point( C ) 2180
Latent heat of evaporation( J g⁻¹ ) 35000
Latent heat of fusion( J g⁻¹ ) 2090
Specific heat( J K⁻¹ kg⁻¹ ) 1030@25°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 8.3@0-100°C
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Available Configurations

Properties common to all products in this list

Commodity: Metals Material: Boron Form: Foil (Light Tight) Composition: B CAS Number: 7440-42-8 Purity: 99.6% Side 1: 25mm Side 2: 25mm Coating: Uncoated Production Method: Hot Pressed Opacity: Light Tight Surface Finish: Standard

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Tolerances

Foil (Light Tight)
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%
Thickness >0.05mm ±10%