TiAlN coatings tribology for textile machinery parts

A STUDY OF TiAlN COATINGS PREPARED BY RF CO-SPUTTERING

Using the reactive magnetron rf co-sputtering technique and a Ti target partially covered with a small Al plate, TiAlN coatings were made on c-Si in a reactive atmosphere of nitrogen and argon. Coatings were deposited on substrates at 22°C and at 150°C. The substrate temperature notably affected the thickness, crystalline grain size, and hardness of the coatings. We analyzed the dependence of b...

Tribology of Carbon-Based Coatings: Past, Present, and Future

During the last three decades, carbon-based coatings have enjoyed a growing interest in several industrial applications. By tuning the C sp-to-sp bonding ratio and by alloying the carbon with other elements, the researchers have been able to tailor unique physical, mechanical, and tribological properties in order to satisfy an increased technological demand. For instance, the low-friction coeff...

Investigations of Thermal Barrier Coatings for Turbine Parts

Progress in gas-turbine engine (GTE) manufacturing is continuously linked with a rise of operating temperature and stresses of engine gas path elements, especially the turbine parts. More advanced cooling systems, structural materials and thermal barrier coatings (TBC) and other coatings provide the required life and strength reliability of these components. While engines are in use, the necess...

Diamond-Like Nanocomposite Coatings for LIGA-Fabricated Nickel Alloy Parts

A commercial plasma enhanced chemical vapor deposition (PECVD) technique with planetary substrate rotation was used to apply a thin (200-400 nm thick) conformal diamond-like carbon (DLC) coating (known as a diamond-like nanocomposite (DLN)) on LIGA fabricated Ni-Mn alloy parts. The PECVD technique is known to overcome the drawbacks associated with the line-of-sight nature of physical vapor depo...

Microstructural evolution of TiAlN hard coatings at elevated pressures and temperatures