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VD0570 Rhenium Evaporation Materials, Re

Catalog No.VD0570
MaterialRhenium (Re)
Purity99.9% ~ 99.99%
ShapePowder/ Granule/ Custom-made

TFM is a leading supplier of ultra-pure rhenium evaporation materials, as well as a broad selection of other evaporation materials. We offer these materials in powder and granule forms, with custom solutions available to address specific requirements.

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Rhenium Evaporation Material Description

Rhenium, a dense, silver-gray metal located in group 7 of the periodic table’s transition metals, is among the rarest elements, with an average concentration of about one part per billion in the Earth’s crust. Known for its exceptionally high melting and boiling points, rhenium is often extracted as a by-product during the molybdenum and copper refining processes. It exhibits chemical similarities to both manganese and technetium.

For high-quality film deposition in various processes, high-purity rhenium evaporation materials are essential. TFM specializes in producing rhenium evaporation materials with purity levels reaching up to 99.99%. Our rigorous quality control ensures that every product meets the highest standards for performance and reliability.

Rhenium Evaporation materials

Rhenium Evaporation Material Specification

Material TypeRhenium
SymbolRe
Atomic Weight186.207
Color/AppearanceSilvery gray, Metallic
Melting Point3180 °C
Density21.02 gm/cc
Thermal Conductivity48 W/m.K @ 25 °C
Electrical Resistivity19.3 microhm-cm @ 20°C
SynonymsRe Pellets, Re Pieces, Re Evaporation Pellet, Rhenium Pellets, Rhenium Pieces, Rhenium Evaporation Pellet

Rhenium Evaporation Material Applications

These high-purity rhenium materials are utilized in a range of deposition techniques, including semiconductor deposition, chemical vapor deposition (CVD), and physical vapor deposition (PVD). In the field of optics, they play a crucial role in improving wear resistance, crafting decorative coatings, and advancing display technologies.

Rhenium Evaporation Material Packaging

We prioritize meticulous handling of our rhenium evaporation materials to prevent any damage during storage and transportation. This careful approach ensures that our products retain their original quality throughout their journey.

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TFM provides rhenium evaporation materials in multiple forms, purities, sizes, and price ranges to meet diverse needs. We excel in producing high-purity e-beam evaporation materials, which are engineered to deliver optimal density and minimal average grain sizes. For up-to-date pricing on evaporation pellets and other deposition materials not currently listed, please reach out to us with your request.

 

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FAQ

  • They are high‐purity substances (e.g. metals, alloys, or compounds) used in thermal or electron‐beam evaporation processes to form thin films on substrates.

  • Typically, they’re processed into a form (often ingots, pellets, or wires) that can be efficiently vaporized. Preparation emphasizes high purity and controlled composition to ensure film quality.

  • Thermal evaporation and electron-beam (e-beam) evaporation are the two main techniques, where material is heated (or bombarded with electrons) until it vaporizes and then condenses on the substrate.

  • Thermal evaporation heats the material directly (often using a resistive heater), while e-beam evaporation uses a focused electron beam to locally heat and vaporize the source material—each method offering different control and energy efficiency.

  • Key parameters include source temperature, vacuum level, deposition rate, substrate temperature, and the distance between the source and the substrate. These factors influence film uniformity, adhesion, and microstructure.

  • Evaporation generally produces high-purity films with excellent control over thickness, and it is especially suitable for materials with relatively low melting points or high vapor pressures.

  • Challenges include issues with step coverage (due to line-of-sight deposition), shadowing effects on complex topographies, and possible re-evaporation of material from the substrate if temperature isn’t properly controlled.

  • Common evaporation materials include noble metals (e.g., gold, silver), semiconductors (e.g., silicon, germanium), metal oxides, and organic compounds—each chosen for its specific optical, electrical, or mechanical properties.

  • Selection depends on desired film properties (conductivity, optical transparency, adhesion), compatibility with the evaporation process, and the final device application (semiconductor, optical coating, etc.).

  • Optimizing substrate temperature, deposition rate, and chamber vacuum are critical for ensuring that the film adheres well and forms the intended microstructure without defects.

  • Troubleshooting may involve checking the source material’s purity, ensuring stable source temperature, verifying the vacuum level, adjusting the substrate’s position or temperature, and monitoring deposition rate fluctuations.

While evaporation tends to yield very high purity films with excellent thickness control, it is limited by its line-of-sight nature. In contrast, sputtering can deposit films more uniformly on complex surfaces and is more versatile for a broader range of materials.

 

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