Specialty Applications of Tungsten Products

Tungsten is a remarkable material known for its high density, strength, and resilience under extreme conditions. It’s widely used across various sectors, from aerospace to electronics. A popular use for tungsten includes as an element to create stronger alloys and compounds, such as tungsten carbide.

However, high purity tungsten also lends itself to industrial use. These four key tungsten products — alumina-coated tungsten boat, folded boats, sputtering targets, and crucible liners — each offer unique benefits tailored to their specific applications.

Here’s a closer look at how these products enhance performance in their respective fields:

Alumina Coated Tungsten Boat

Tungsten boats, made out of pure tungsten, are used to resistively heat material for vacuum deposition processes. However, these sources may wear out due to the corrosive properties of certain molten materials, such as aluminum.

For enhanced durability and performance, alumina-coated tungsten boats are crucial in these high-temperature applications. The alumina coating provides several benefits, improving corrosion resistance, enhancing thermal stability, and reducing contamination:

• The alumina layer protects the tungsten boat from corrosive materials such as nickel, extending its lifespan and maintaining its structural integrity.
• Alumina coatings help maintain the deposition’s performance under extreme temperatures, eliminating material migration or creep and ensuring consistent results.
• The coating minimizes contamination of deposited materials, leading to higher-quality films and coatings.

These properties make alumina-coated tungsten boats ideal for use in industries requiring precise and reliable deposition processes, such as semiconductor manufacturing and vacuum metalizing.

Tungsten Folded Boats

Folded boats are another variation of the thermal evaporation boat. These boats, however, are designed with higher capacities that a typical boat would not have, giving them some advantages over them.

• The higher side walls of folded boats allow more volume than typical boats.
• Folded boats can have customizable lengths and widths of the evaporation area..

For higher volume of material, tungsten folded boats would be a good choice. Contact the R.D. Mathis Company for more information about tungsten folded boats, available upon request.

Tungsten Crucible Liners and Sputtering Targets

Tungsten crucible liners and tungsten sputtering targets also play a critical role in thin-film deposition technologies. Although not used for thermal evaporation processes, e-beam evaporation and sputter deposition also fall within the physical vapor deposition sphere.

For e-beam evaporation, crucible liners use tungsten due to its high melting point and resistance to thermal stresses. A low vapor pressure also means that coatings are not contaminated with unwanted tungsten during a deposition.

Tungsten is also used in sputter deposition in the form of sputtering targets to deposit tungsten coatings. For metallization, tungsten has various strengths as a choice of thin film:

• Sputtering targets offer high purity and density, which are crucial for producing quality tungsten thin films for high performance in sensitive electrical applications.
• Tungsten’s thermal conductivity ensures even heating during the sputtering process, leading to uniform film deposition.
• Tungsten sputtering targets are used in a wide range of applications, including semiconductor manufacturing, optical coatings, and solar panels.

The use of tungsten expands to many other vacuum deposition technologies, making it versatile and a critical material for many applications.

Shop Our Alumina Coated Tungsten Boat and Additional Tungsten Products

Each of these tungsten products brings unique benefits to its specific application. From enhancing performance in high-temperature environments to improving the quality of thin-film technologies, tungsten’s exceptional properties make it a valuable material across various fields.

For high-quality tungsten products and expert advice tailored to your needs, visit R.D. Mathis Company’s website. Our extensive inventory and commitment to customer satisfaction ensure you get the best products for your projects.

Explore our selection today and experience the difference.