To shorten the wait for the 14th ThGOT and the 6th Optics Colloquium we would like to give you a small foretaste of our numerous exciting technical presentations in the coming weeks.
Contamination of surfaces via air Modern applications of secondary ion mass spectrometry
Sebastian Galla-Stroth, OFG-Analytik - TOF-SIMS, Münster, Germany
The development and possible applications of innovative products are often determined by the chemical and physical properties of the surface or interfaces. They influence important properties such as wettability, adhesion, susceptibility to corrosion, electrical contact capability and biocompatibility. However, the smallest amounts of a foreign substance in the submicroscopic range of a few millionths of a gram can lead to malfunctions or even the failure of a particular product.
Surfaces can be contaminated not only by direct physical contact with liquid or solid materials, but in many cases also by adsorption of compounds from the gas phase (air). The presence of various substances from almost all product materials surrounding us in the ambient air is often underestimated. In the gas phase above a process or component surface, there are compounds from a wide variety of sources: Softeners from floor coverings, silicones from seals, polyether glycols from cleaning systems, additives from plastic parts, lubricants from ball bearings, or substances from processes that take place for a limited time, such as cleaning or work processes in plastics or metal processing.
This talk will be presented in SESSION B: NEW TRENDS IN SURFACE TECHNOLOGY on March 13, 2019 at 1:50 pm.
Particles for flame pyrolysis
Björn Kretzschmar, INNOVENT e. V. - Surface Technology, Jena
Various particles are ubiquitous. In city air, for example, there are between 15 million and 100 million particles per m3. Particles are characterized by a phase boundary with respect to the medium continuously surrounding them; these include, for example, aerosols. For many decades, research has been concerned with the generation and measurement of particles or aerosols, especially in the nanometer range. In systems of flame pyrolysis (Combustion Chemical Vapour Deposition, CCVD) different precursor dosages are applied. Commercially available aerosol generators are one possibility for generating particles in the nanometer range. An aerosol generator originally developed for testing filter systems is extensively characterized and specified for use in CCVD processes.
This talk will be presented in SESSION B: NEW TRENDS IN SURFACE TECHNOLOGY on March 13, 2019 at 2:10 pm.