In the GWP Magazine, we regularly report in compact summaries on exciting topics and questions that concern us in our everyday work as a materials laboratory. We take a look behind the scenes of our work and show how we examine, test and optimize various materials. Whether it is the analysis of material defects, the development of new test methods or the solution of complex engineering problems - we share our specialist knowledge and offer valuable insights into the world of materials technology. Our goal is to provide both experts and interested parties with practical information and current developments in materials research.
Introduction Recycled plastics must meet specific material properties in order to be used in industrial applications. In this case, a regranulate examined did not show the
Introduction Flat roof membranes made of plastic are often used as waterproofing materials in construction. In this case, a PVC-based roof membrane was investigated, which caused a strong odour nuisance when exposed to sunlight.
Problem: The recycled high-impact polystyrene (HIPS) does not meet the required mechanical properties, especially with regard to impact resistance. Analysis and results: To identify and quantify foreign substances,
Problem: To characterize membrane filter plates for recycling, the filler content and material composition were investigated. Investigation strategy: A step-by-step analysis of the particle structure and composition was carried out.
Problem: Under mechanical stress, the cable insulation breaks and peels off the copper wire. Investigation strategy: For damage analysis, an electron microscopic fracture and defect analysis with
There is currently (2025) a lot of talk about the financing requirements for defence. Enormous sums of 2-5% of the respective gross domestic product are mentioned. But did you know that
Problem: In the test runs, the welded forks of a forklift truck were subjected to a pressure-swelling load test to simulate the alternating picking up and setting down of loads.
Development of a test specification for the assessment of the quality of waste containers for public transport As part of the development of a test specification for the quality assessment of waste containers for public transport,
Aim of the research project (BMBF reference number: 03MAI07B) The research project funded by the BMBF aimed to develop, build and test an innovative applicator to facilitate CFRP production
Problem In the event of a thermal runaway in lithium-ion battery cells, various gases and solids are released that can have potentially hazardous properties. Understanding these emissions is
Investigation of a short circuit due to a foreign body Problem A failure was detected by the customer due to a short circuit. After a CT scan, a foreign body was identified in an assembly
Topic: Investigation of thermal material properties Determination of the crystallinity of plastics Problem The product has an undesirably high level of brittleness and is therefore unsuitable as a packaging material.
Investigation of deposits in a water-cooled exhaust pipe During the investigation of a water-cooled exhaust pipe that had become leaky due to hole formation, soot deposits were found inside which
Adhesive bonding as the joining method of the 21st century Adhesive bonding is often referred to as the joining method of the 21st century. A decisive advantage of this method is that it is theoretically
The aim of the investigation was to clarify the origin of the water leaking from a suspended ceiling on the upper floor of an office building. In order to identify water bodies of different origins,
The aim of the study was to determine the concentrations of heavy metals, especially the RoHS-relevant substances. The task was to measure the dust and gaseous emissions for the first time.
Material analysis, particles, plain bearings, plastic, HDPE, composition, aging, REM, EDX, FTIR Topic Characterization of impurities: Material analysis of a particle in a medical end product Problem Particles of unknown origin
The diesel tanks made of two different PE materials were treated with UV fluorescent lamps. The weathering period was 500 hours. To evaluate the aging, notched bar impact tests were carried out in accordance with DIN EN ISO
For very small samples, the usual analytical methods for carbon determination are difficult to apply. For many methods, the sample quantity is simply not sufficient. We can
Problem: Suspicion of counterfeiting In a recent study, samples of packaging made of paper with plastic film showed different behavior under mechanical stress.
Problem: First-time determination of emissions without standards In this study, the dust and gaseous emissions of solar power modules were to be determined for the first time, as there have been no
Problem: Brittleness of packaging material A plastic product that was originally intended as packaging material turned out to be brittle and therefore unsuitable for this purpose. In order to determine the cause
In orthopedic surgery, metallic materials are often used for bone and joint replacement implants. Titanium alloys, cobalt-chromium-molybdenum alloys and stainless steel are particularly common. These materials are characterized by
Problem: Unknown particle in a medical end product In this case, a particle of unknown origin was discovered in a medical end product. The challenge was to
The GWP received two spacer rollers made of PA 66 from the customer for investigation, on whose surfaces streaks were visible. The aim of the investigation was to
Society for Materials Testing mbH
Ensure quality | Support development | Analyze damage | Pass on knowledge
GWP Society for Materials Testing mbH
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Alexander Mayer
Dr. Stefan Loibl
Simon Löhe
