Scandium Foil (Light Tight)

Scandium Foil Light Tight combines scandium’s exceptional alloying and corrosion resistance properties with a surface structure engineered to block all external light transmission. This makes it valuable in optical shielding, photonic research, and specialized aerospace sensor systems. Industries such as aerospace, defense, and photonics use light-tight scandium foil for optical isolation in precision instruments, protective layers for space-based sensors, and high-performance barriers in spectroscopy setups. Specific applications include shielding detectors from stray light in orbital telescopes, lining light-sensitive measurement chambers, and creating high-integrity optical barriers in laboratory research. The material’s rare-metal properties, combined with full light occlusion, make it essential in scientific and industrial systems where optical interference must be eliminated.

Quick Links:

Properties

Reference & Citations

Flammable

each

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	21
Crystal structure	Hexagonal close packed
Electronic structure	Ar 3d¹ 4s²
Valences shown	3
Atomic weight( amu )	44.9559
Thermal neutron absorption cross-section( Barns )	25
Photo-electric work function( eV )	3.5
Atomic radius - Goldschmidt( nm )	0.16
Ionisation potential( No./eV )	3/ 24.8
Ionisation potential( No./eV )	5/ 91.7
Ionisation potential( No./eV )	4/ 73.5
Ionisation potential( No./eV )	6/ 111
Ionisation potential( No./eV )	1/ 6.54
Ionisation potential( No./eV )	2/ 12.8

Mechanical Properties

Element	Value
Hardness - Brinell	78
Hardness - Brinell	136
Material condition	Soft
Material condition	Hard
Poisson's ratio	0.27
Poisson's ratio	0.27
Bulk modulus( GPa )	44.2
Bulk modulus( GPa )	44.2
Tensile modulus( GPa )	79.3
Tensile modulus( GPa )	79.3

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	66@20@20°C
Temperature coefficient( K⁻¹ )	0.00282@0-100°C

Physical Properties

Element	Value
Boiling point( C )	2831
Density( gcm⁻³ )	2.99@20°C

Thermal Properties

Element	Value
Melting point( C )	1541
Latent heat of evaporation( J g⁻¹ )	7293
Latent heat of fusion( J g⁻¹ )	357
Specific heat( J K⁻¹ kg⁻¹ )	557@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	15.8@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	12@0-100°C