Tungsten Crucibles
Tungsten Crucibles
Tungsten Crucibles | |
Product No | NRE-47015 |
CAS No. | 7440-33-7 |
Formula | W |
Molecular Weight | 183.85 g/mol |
Purity | 99.9% |
Density | 19.3 g/cm3 |
Melting Point | 3410 °C |
Boiling Point | 5900 °C |
Shape | Crucible |
Electrical Resistivity | 5.65 microhm-cm @ 27 °C |
Electronegativity | 1.7 Paulings |
Tungsten Crucibles
Introduction:
Tungsten crucibles are specialized containers made from tungsten, a refractory metal known for its exceptionally high melting point (approximately 3,422°C or 6,192°F), outstanding thermal conductivity, and resistance to thermal shock. These properties make tungsten crucibles ideal for various high-temperature applications, particularly in environments requiring chemical inertness and high purity. They are used in fields such as metallurgy, chemical processing, and materials science.
Applications Metallurgical Processes:
Melting and Casting: Extensively used for melting metals like titanium and tantalum, where maintaining purity and high temperatures is critical.
Chemical Processing:
Employed in reactions involving corrosive materials, as tungsten’s inert nature prevents contamination and ensures the integrity of the processed materials.
High-Temperature Research:
Utilized in laboratories for experiments requiring high-temperature environments, particularly in materials science and physics.
Sintering of Advanced Materials:
Used in the sintering process for ceramics and composites, providing uniform heating and improved material properties.
Thin Film Deposition:
Applied in semiconductor manufacturing for physical vapor deposition (PVD), where tungsten crucibles help create high-quality thin films.
Nuclear Applications:
Employed in nuclear reactors for handling radioactive materials, where high melting points and low neutron absorption are advantageous.
Manufacturing of Superconductors:
Used in producing superconducting materials that require high purity and thermal stability.
Thermal Management:
Utilized in systems that require effective heat dissipation, leveraging tungsten’s excellent thermal conductivity.
Glass and Ceramic Production:
Employed in melting raw materials for specialty glasses and ceramics, providing a stable environment.
Pharmaceutical Applications:
Occasionally used in pharmaceutical processes that require high temperatures and inert environments to ensure material purity.