Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity materials and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Our 170,000+ range of products can cater to all your research needs.
A variety of specialist materials to support space technology needs.
Highest quality materials including graphite and lithium compounds.
High purity materials to benefit your evaporation processes.
Thin, alkali-free, borosilicate glass for LCD displays to electronic packaging applications.
Ground-breaking graphene-based nanocomposites for regenerative medicine to R&D.
An industry-leading polyimide foil by DuPont™.
A high-performance para-aramid fiber revolutionizing materials science.
A machinable glass ceramic material offering higher performance, reliability, and durability.
This versatile polyester thin film by DuPont™.
It has excellent heat and flame-resistant properties from DuPont™.
A ceramic that addresses the traditional issues of brittleness, fragility, and hardness.
This range of high purity alumina (HPA) powders has exceptional purity levels, making it one of the purest forms of alumina commercially available.
This high temperature insulation material has exceptional properties and versatile applications.
This transparent, heat resistant polyolefin resin has unique properties for a range of applications.
Toggle Nav
Formula: Ta
Form: Pellets
Material: Tantalum
CAS Number: 7440-25-7
Commodity: Metals
Purity:
99.9%
Tantalum Pellets are available from Goodfellow in a variety of sizes and purities. Tantalum is a lustrous, hard, and very dense metal known for its excellent corrosion resistance and high melting point. Tantalum pellets are used for sputtering targets in the semiconductor industry to make integrated circuits as well as in the chemical industry for alkali and acidic corrosion protection. Goodfellow offers a wide selection of tantalum pellets with high purity levels up to 99.99% to meet your research and industrial needs.
Tolerances
Pellets
| Maximum Lump Size | Nominal |
|---|
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 73 |
| Crystal structure | Body centred cubic |
| Electronic structure | Xe 4f¹⁴ 5d³ 6s² |
| Valences shown | 2,3,4,5 |
| Atomic weight( amu ) | 180.9479 |
| Thermal neutron absorption cross-section( Barns ) | 22 |
| Photo-electric work function( eV ) | 4.1 |
| Natural isotope distribution( Mass No./% ) | 180/ 0.012 |
| Natural isotope distribution( Mass No./% ) | 181/ 99.988 |
| Atomic radius - Goldschmidt( nm ) | 0.147 |
| Ionisation potential( No./eV ) | 1/ 7.88 |
| Ionisation potential( No./eV ) | 2/ 16.2 |
Mechanical Properties
| Element | Value |
|---|---|
| Material condition | Hard |
| Material condition | Soft |
| Poisson's ratio | 0.342 |
| Poisson's ratio | 0.342 |
| Bulk modulus( GPa ) | 196.3 |
| Bulk modulus( GPa ) | 196.3 |
| Tensile modulus( GPa ) | 185.7 |
| Tensile modulus( GPa ) | 185.7 |
| Hardness - Vickers( kgf mm⁻² ) | 200 |
| Hardness - Vickers( kgf mm⁻² ) | 90 |
| Tensile strength( MPa ) | 760 |
| Tensile strength( MPa ) | 172-207 |
| Yield strength( MPa ) | 705 |
| Yield strength( MPa ) | 310-380 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 13.5@20@20°C |
| Superconductivity critical temperature( K ) | 4.47 |
| Temperature coefficient( K⁻¹ ) | 0.0035@0-100°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 0.33 |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 5425 |
| Density( gcm⁻³ ) | 16.6@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 2996 |
| Latent heat of evaporation( J g⁻¹ ) | 4165 |
| Latent heat of fusion( J g⁻¹ ) | 174 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 140@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 57.5@0-100 |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 6.5@0-100°C |