The scientists at Russia’s Peter the Great St.Petersburg Polytechnic University used a completely new technology based on vacuum coating, which will cut production costs drastically.
The Society of Vacuum Coaters named Frank Zimone as its executive director earlier this year, but he is no stranger to the organization, having previously served in other roles with the organization and as president of Jenoptik Defense.
Can Electroplated Fe-C be an Environmentally Friendly Alternative to Hard Chromium and DLC Coatings?
Electroplated FeC is an efficient surface treatment based on non-aggressive chemicals with a deposition rate of ~20 μm/h at a process temperature of 50°C. The FeC coating is carbide-free and temperature stable up to ~250°C with a hardness of 750 HV, which is comparable to frequently applied hardened steels. The FeC coating has reasonable friction properties and have high affinity towards lubricants because of incorporated amorphous carbon. Hence, for certain applications, the FeC coating might be an interesting wear-protective alternative to hard chromium and to PVD-deposited low-friction diamond-like carbon coatings (DLC’s), which are rather difficult and costly to deposit on larger items.
#research #surfin #vacuum-vapor
This article is a re-publication of the 38th William Blum Lecture, presented at the 84th AES Annual Convention in Detroit, Michigan on June 23, 1997. This lecture reviews a number of works in automotive finishing R&D in which understanding of the overall system was absolutely essential to success, from classical nickel-chromium plating to work in vacuum/electroplated hybrids for plated plastics, electrogalvanized zinc and hard chromium in stamping dies.
#automotive #basics #surfin
Novel plasma-clustered deposition technique, called PVD Droplets, as well as its main principles of operation were described. New types of obtained thick, over 20 μm, functional coatings basing on Ta and Zr have been presented. Results of research in physic-chemical properties of the coating materials are listed including preliminary studies of superconductive properties. Comparative evaluation between of obtained coatings and sample CVD coating was made.
The modern automotive industry has been striving to reduce energy loss caused by friction. An alloy plating film developed by finely crystallizing iron and tungsten demonstrates both a high level of hardness and excellent ductility. In addition, low friction can be achieved by its application under a layer of lubricant. It also has the merit of greater cost performance as compared with DLC produced with PVD technology.
#research #vacuum-vapor #energy
Four Lehigh engineers report a previously unknown property for GaN: its wear resistance approaches that of diamonds and promises to open up applications in touch screens, space vehicles and radio-frequency microelectromechanical systems.
VCN process is accomplished by reducing the total pressure in a controlled-environment chamber that contains the components to be cleaned submerged in a solvent or an aqueous solution.
System’s modular design incorporates multiple process stations, proprietary high-duty chamber isolation valves, and an integrated wheel handling system.
How to clean beryllium copper of hydrocarbons.
Manufacturing of Electrocatalytic Material for Large Scale Hydrogen Production by the Combination of Electroplating, PVD, Thermochemical Diffusion and Leaching Processes
This paper is a fine example of the multitude of ways that surface finishing can be brought to bear in process development. In this case, a combination of processes is applied to large scale hydrogen production.