Für unsere Kunden ist es oft überraschend, wenn wir bei der Restschmutzanalyse auf ihren Bauteilen harte Mineralpartikel finden. Die Kunden fragen nach: „Wie kann das sein? Wir haben bei unseren eigenen Sauberkeitsprüfungen nichts feststellen können.“ Die Frage nach Verunreinigungen durch harte Minerale ist deshalb so wichtig, weil diese Partikel abrasiv wirken und auf diese Weise mechanische Systeme wie Getriebe und Motoren massiv schädigen.
Researchers from Bremen have provided us with this interesting sample of volcanic ash, which we examined with our Coxem tabletop SEM-EDX. In addition to the sponge structure of the fine ash particles typical of volcanic eruptions, we identified various microfossils, so-called diatoms.
The determination of technical cleanliness according to VDA-19.1 and ISO-16232 has become an integral part of quality control and error analysis - because the cleanliness of components is crucial for the quality and error-free functioning of the product. In addition to particles, film contamination is a problem, as the following example from quality assurance in the production of electrical drive systems shows.
Employees from the wood engineering department sent us an aged wood sample with a typical discoloration. With our Coxem scanning electron microscope we have imaged the microstructure in high resolution and carried out an elemental analysis of the discoloration.
In order to answer the question of the whereabouts of microplastic particles from tire abrasion, new analysis methods are urgently needed to reliably detect and count these particles. We conducted a pilot study to test the possibilities of automatic SEM-EDX analysis in the quantification of tire wear in environmental samples.
By popular demand of our customers, we have developed a guide to assist the buyer in choosing a suitable system with practical advice and technical information.
When it comes to component cleanliness, the toughest particles cause the greatest damage. The difficulty, however, is to find these killer particles because they can be so small that they can not be seen with a light microscope.
A central requirement in the production of pharmaceutical products is the avoidance of visible foreign particles. Our testing laboratory has developed innovative and at the same time simple methods to reliably quantify foreign particles in pharmaceutical powders.
The identification of metallic particles is an important requirement in cleanliness analysis. In recent years, the light-optical detection of metallic particles has commonly been performed by the means of gloss. On the basis of our laboratory experience, we have found that the light microscopic analysis often leads to incorrect typifications, which can be easily avoided by a material analysis using SEM-EDX.
The Korean company Coxem has developed economical desktop devices for the SEM-EDX analysis, which convince with an outstanding resolution. This new product series is now also available in Germany via RJL Micro & Analytic. Customers benefit from our proven support and technical service. Superior electron optics A newly developed electron optics achieves a resolution of 5 nanometers and thus [...]