Beschreibung
Tungsten has a melting point exceeding 3 400°C. Its measured melting point is 3 410°C, which enables the material to withstand the temperatures required for evaporation. This permits a controlled and even deposition process. In addition, tungsten displays quantifiable hardness and mechanical strength. These measured attributes ensure that tungsten evaporation materials maintain their performance throughout the deposition process and deliver consistent outcomes.
Furthermore, tungsten exhibits high electrical conductivity and thermal conductivity. Consequently, tungsten evaporation materials conduct heat and electrical current efficiently during the evaporation process, thereby improving process efficiency. The material also presents chemical stability and resistance to corrosion and oxidation. These characteristics help it maintain its original properties over extended durations, even in challenging environments.
Spezifikation
Material
|
Tungsten
|
Atomic Weight
|
183.84
|
Colour/Appearance
|
Grey-white, shiny, metallic
|
Thermal Conductivity
|
174 W/m.K
|
Melting Point (°C)
|
3 410
|
Thermal Expansion Coefficient
|
4.5 x 10^-6/K
|
Theoretical Density (g/cc)
|
19.25
|
Z-Ratio
|
0.163
|
Temperature (°C) for given Vapour Pressure (Torr)
|
10^-8: 2 117, 10^-6: 2 407, 10^-4: 2 757
|
Anwendungen
1. Thin-film coatings: Tungsten evaporation materials are employed for depositing thin layers on various substrates. The deposition process can modify physical and chemical parameters such as hardness, wear resistance, corrosion resistance and electrical conductivity. These coatings are used in microelectronics, optics and related industries.
2. Electronic devices: Tungsten evaporation materials are utilised in the manufacture of semiconductors, transistors and diodes. Their electrical conductivity and high melting point facilitate the production of reliable electronic components.
3. Vacuum coatings: In vacuum deposition processes, tungsten evaporation materials are applied to deposit coatings on different surfaces. This process alters surface properties by providing additional functional attributes and is implemented in the automotive, aerospace and medical industries.
4. Cutting tools and wear-resistant components: The measured hardness and wear resistance of tungsten make it suitable for the production of cutting tools such as knives and drills, as well as components in mechanical systems that operate under load.
5. High-temperature applications: Given its melting point above 3 400°C and confirmed thermal stability, tungsten is used in furnaces, heat treatment processes and other industrial applications where materials must endure high temperatures.
6. Research and development: Tungsten evaporation materials are also applied in research settings. Their quantifiable properties support investigations into new materials and technologies.
Verpackung:
Our tungsten (W) evaporation materials are packaged to prevent damage during storage and transport. This method maintains the material’s original condition.