Yes, DLC coating can be applied to aluminum. DLC stands for diamond-like carbon, which is essentially an amorphous carbon material. DLC coatings are known for their excellent wear and chemical resistance. They are often used as protective coatings for various materials, including aluminum and its alloys.
One advantage of DLC coatings is that they can be applied at low deposition temperatures, as low as 200°C. This means that even materials like aluminum, brass, copper, or low-tempered steels can be coated with DLC. The low deposition temperature is important because it allows for the coating of materials that may be sensitive to high temperatures.
Deposition of DLC films on aluminum and its alloys has gained attention for various applications, such as wear-resistant coatings in automobile pistons, bores, VCR heads, copier machine drums, and textile components. Aluminum and its alloys have low density but poor tribological properties. Therefore, applying DLC coatings to aluminum can improve its wear resistance and specific strength, making it suitable for applications that require both high strength and wear resistance.
The DLC film deposition on aluminum alloy substrates can be carried out using plasma-enhanced chemical vapor deposition (PECVD). PECVD is a process that uses plasma excitation and ionization to activate chemical reactions and deposit the DLC coating. PECVD has advantages over other deposition techniques, such as lower deposition temperatures, chemical stability, fewer toxic byproducts, quick processing time, and high deposition rates.
In summary, DLC coating can be applied to aluminum and its alloys. It provides excellent wear and chemical resistance, improving the tribological properties of aluminum. The deposition can be done using PECVD, which offers advantages such as low deposition temperatures and high deposition rates. DLC coatings on aluminum have various applications in automotive, machinery, and other industries.
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