A5084441181- Lubricants and Their Additives
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Advanced materials and composites
- Tribology and Wear Analysis
- Electron and X-Ray Spectroscopy Techniques
- Metal Alloys Wear and Properties
- Copper Interconnects and Reliability
- Surface and Thin Film Phenomena
- Gear and Bearing Dynamics Analysis
- Semiconductor materials and devices
- X-ray Spectroscopy and Fluorescence Analysis
- Ionic liquids properties and applications
- Adhesion, Friction, and Surface Interactions
- High-Temperature Coating Behaviors
- Corrosion Behavior and Inhibition
- Ion-surface interactions and analysis
- Semiconductor materials and interfaces
- Electronic Packaging and Soldering Technologies
- Aluminum Alloys Composites Properties
- Force Microscopy Techniques and Applications
- Metallurgical and Alloy Processes
- Integrated Circuits and Semiconductor Failure Analysis
- Tribology and Lubrication Engineering
- Electromagnetic Launch and Propulsion Technology
AC2T Research (Austria)
2012-2024
TU Wien
2000-2019
Kompetenzzentrum für elektrochemische Oberflächentechnologie
2014
Allgemeine Unfallversicherungsanstalt
2004
Two ammonium-based ionic liquids (IL) with the potential to be used as lubricants were investigated respect their corrosion ability. With intention reduce negative environmental impact of lubricant ILs, (2-hydroxyethyl)-trimethyl-ammonium (choline) was chosen cation and compared butyl-trimethyl-ammonium. commonly metals immersed in selected ILs simulate severe conditions. For each material, a inhibitor added respective IL confer protection. The corrosive behavior determined by specially...
Abstract In this paper, it is shown that specific ionic liquids have great potential to be used as additives for tribological applications. The results promise a high load carrying capacity; especially the cation 3‐Octhylthiazolium and long term stability up temperatures of 120°C given. However, only extreme pressures/anti‐wear properties are examined in detail with selected test method. Friction modifier (FM) effectiveness cannot easily demonstrated, because good performance base stock....
An investigation of the optical and electronic properties amorphous silicon dioxide by means a combination reflection electron energy loss spectroscopy (REELS) secondary electron–electron coincidence (SE2ELCS) is presented. Optical constants for a-SiO2 were extracted from REELS measurements band gap 9.1 eV was determined deconvolution multiple scattering fitting differential inverse inelastic mean free path with model function (ELF). The allow to determine surface barrier height affinity be...
Beryllium is considered to be a candidate material for the first wall of nuclear fusion plasma experiments, e.g. ITER. In this application, interaction beryllium with oxygen important two reasons. One aspect reaction hot air in case catastrophic leak, other action as getter, binding impurities and thus helping keep level contamination low. We therefore investigated at elevated temperatures up 600°C on microscopic level, using high resolution Auger electron microscope. At 390°C, thin...
The effect of antiwear (AW) commercial additive concentration on the load-carrying capacity (scuffing resistance) a-C:H:W/steel tribo-system intended for heavy-loaded machine parts was investigated. For comparison, steel/steel contacts were also scuffing resistance has been measured as limiting pressure seizure ( p oz ) using four-ball apparatus. method with continuously increasing load applied. tribo-systems lubricated poly-alpha-olefin base oil mixed a zinc dialkyldithiophosphates type AW...
We present a focused ion beam based technique for the synthesis of nanowires in room temperature ambient without using any additional material source. Based on idea catalytic approach gallium antimonide and antimony were grown with diameters about 20nm. suppose that intense exposure forms particles alloyed by constituents growing nanowire situ. In contrast to broad class techniques growth neither heating sample nor source is required, thereby being compatible on-chip microelectronics.
The formation of tribofilms depends on temperature, shear stress, availability the related chemical components, and characteristics near surface region, e.g., roughness chemistry. purpose a tribofilm is to separate two sliding surfaces, thus preventing or limiting wear. This research article aims for first time at systematic approach elucidate fundamental level interplay between in particular thickness wear behavior boundary mixed lubrication regime. For this, load, temperature frequency as...
Metal injection moulding (MIM) offers advantages for mass production of components which may be subjected to tribological load. Obviously, MIM processing influences material and thus properties. Contrariwise, it is possible gain specific favourable properties by MIM. manufactured CuNi9Sn6 CuSn8 based on commercial feedstocks were subject investigations compared conventionally materials. For testing, an SRV tribometer in a modified set-up was applied. MIM-CuNi9Sn6 appears promising terms low...