Molybdenum Disk Single Crystal

Molybdenum Disk Single Crystal offers exceptional thermal conductivity, high melting point, and outstanding chemical purity in a precisely machined circular form with controlled crystallographic orientation. The single-crystal structure eliminates grain boundaries, enhancing mechanical stability, reducing scattering, and enabling superior electron and phonon transport. Industries such as semiconductors, optics, and nuclear technology employ single-crystal molybdenum disks in X-ray targets, electron microscopy supports, and precision substrates for thin-film growth. Applications include epitaxial film deposition, high-resolution electron backscatter diffraction standards, and thermal management components requiring uniform anisotropic properties. Research investigates defect-free crystal growth, orientation-dependent thermal behavior, and performance under extreme irradiation or thermal cycling. The disk form ensures uniform thermal distribution, reproducible geometry, and compatibility with precision systems, reinforcing its role in advanced device engineering and fundamental crystallographic studies.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Single Crystal

Orientation		See Item
Thickness		+2% / -1%
Length		+2% / -1%

Disk

Diameter		+2% / -1%

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	42
Crystal structure	Body centred cubic
Electronic structure	Kr 4d⁵ 5s¹
Valences shown	2, 3, 4, 5, 6
Atomic weight( amu )	95.94
Thermal neutron absorption cross-section( Barns )	2.65
Photo-electric work function( eV )	4.2
Natural isotope distribution( Mass No./% )	95/ 15.9
Natural isotope distribution( Mass No./% )	96/ 16.7
Natural isotope distribution( Mass No./% )	98/ 24.1
Natural isotope distribution( Mass No./% )	97/ 9.6
Natural isotope distribution( Mass No./% )	92/ 14.8
Natural isotope distribution( Mass No./% )	94/ 9.3
Natural isotope distribution( Mass No./% )	100/ 9.6
Atomic radius - Goldschmidt( nm )	0.14
Ionisation potential( No./eV )	2/ 16.15
Ionisation potential( No./eV )	5/ 61.2
Ionisation potential( No./eV )	68
Ionisation potential( No./eV )	1/ 7.10
Ionisation potential( No./eV )	3/ 27.2
Ionisation potential( No./eV )	4/ 46.4

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.293
Poisson's ratio	0.293
Bulk modulus( GPa )	261.2
Bulk modulus( GPa )	261.2
Tensile modulus( GPa )	324.8
Tensile modulus( GPa )	324.8
Hardness - Vickers( kgf mm⁻² )	250
Hardness - Vickers( kgf mm⁻² )	200
Tensile strength( MPa )	485-550
Tensile strength( MPa )	620-690
Yield strength( MPa )	550
Yield strength( MPa )	415-450

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	5.7@20@20°C
Superconductivity critical temperature( K )	0.915
Temperature coefficient( K⁻¹ )	0.00435@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	1.45

Physical Properties

Element	Value
Boiling point( C )	4612
Density( gcm⁻³ )	10.22@20°C

Thermal Properties

Element	Value
Melting point( C )	2617
Latent heat of evaporation( J g⁻¹ )	6153
Latent heat of fusion( J g⁻¹ )	290
Specific heat( J K⁻¹ kg⁻¹ )	251@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	138@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	5.1@0-100°C