3N5 (99.95%) Tantalum (Ta) Pellets Evaporation Materials - MSE Supplies LLC

MSE PRO 3N5 (99.95%) Tantalum (Ta) Pellets Evaporation Materials

  • £13700

MSE PRO™ 3N5 (99.95%) Tantalum (Ta) Pellets Evaporation Materials

Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as minor components in alloys. Due to their high stiffness and corrosion resistance, thin Tantalum films are used in electronic devices and x-ray optics. Using Tantalum films as superconductors is also under investigation.

The dimensions and purities can be customized upon request. Please contact us for customization or bulk orders

Name Tantalum
Chemical Formula Ta
  • TA3830: 1/4" Dia. x 1/4" L, 50g
  • TA3831: 1/4" Dia. x 1/4" L, 100g
  • TA3832: 1/4" Dia. x 1/4" L, 250g
  • TA3833: 1/8" Dia. x 1/8" L, 50g
  • TA3834: 1/8" Dia. x 1/8" L, 100g
  • TA3835: 1/8" Dia. x 1/8" L, 250g
CAS # 7440-25-7
Atomic Number 73
Molecule Weight (g/mol) 180.95
Color/Appearance Gray Blue, Metallic
Purity ≥99.95%, 3N5
Thermal Conductivity (W/m.K) 57
Coefficient of Thermal Expansion (/K) 6.3 x 10-6
Melting Point (°C) 3,017
Theoretical Density (g/cm3) 16.6
Z Ratio 0.262
E-Beam Excellent
E-Beam Crucible Liner Material Graphite
Temp. (°C) for Given Vap. Press. (Torr) 10-8:  1,960
10-6:  2,240
10-4:  2,590

MSE Supplies offers a variety of crucibles for evaporation materials. We can customize the dimensions based on your requirements.


1. Preparation and properties of thin amorphous tantalum films formed by small e-beam evaporators. Journal of Physics D: Applied Physics 42, no. 13 (2009): 135417.

2. The relationship between deposition conditions, the beta to alpha phase transformation, and stress relaxation in tantalum thin films. Journal of Applied Physics 72, no. 10 (1992): 4918-4924.

3. Structure and Properties of Tantalum Coatings Obtained by Electron Beam Technology on Aluminum Substrates. Applied Sciences 10, no. 11 (2020): 3737.