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Hot material extrusion (MEX) additive manufacturing with filament feedstock (also known as fused filament fabrication (FFF) or fused deposition modeling (FDM™)) is one of the most popular and fast-growing 3D-printing techniques for consumer and educational purposes. A continuous ... Mehr lesen

Friction stir welding (FSW) is a revolutionary technique for joining high-strength materials, offering superior mechanical properties compared to traditional fusion welding methods. However, achieving optimal surface quality in FSW of Inconel 718 is challenging due to the material's ... Mehr lesen

Increased concentrations of greenhouse gases in the atmosphere are known to be the main cause of global warming. Among the various decarbonisation strategies proposed, geological storage of CO2 is one of the most interesting options for reducing net carbon emissions to the atmosphere. ... Mehr lesen

Fire resistance tests of building elements are essential for evaluating their ability to withstand fire exposure and prevent fire spread. Fire resistance tests are expensive and usually take months to organize. If the same structure is retested at the same lab, the systems are so complex ... Mehr lesen

The transportation of highly viscous oil surrounded by water annulus can be a practical option in terms of low-energy consumption and high efficiency. The stability of maintaining this type of flow can be challenging, especially with highly viscous oil. In this present study, three ... Mehr lesen

Batteries are considered a key technology for the transition to climate neutrality. There is an urgent need to improve the resource efficiency of existing technologies while transitioning to next-generation battery systems. A mechanistic battery model is a powerful tool to accelerate ... Mehr lesen

Balanced armature (BA) receivers are miniaturized loudspeakers used in hearing aid instruments, earphones, and hearables. A typical design of a BA receiver includes an armature (metal strip) that is placed between two permanent magnets and a coil that is wound around the armature. The ... Mehr lesen

A thermo-hydraulically (TH) coupled code for modelling the water uptake of compacted bentonite has been developed and presented by (Kröhn and Fromme 2023). This code is internally called “COMSOL-VIPER” as it is based on the balance equations developed for the experimental code VIPER ... Mehr lesen

The electromagnetic study for the design of microwave ovens requires knowledge of the electric permittivities of the materials within the chamber. In some cases, data can be easily obtained from the literature, as with Teflon, Mica, and borosilicate glass. However, for more advanced ... Mehr lesen

High voltage (HV) stability is an important requirement in many technical areas. The prevention of partial discharges or flashovers requires careful mechanical and electrical design of all components with high electric potential difference towards the surrounding. In the Semiconductor ... Mehr lesen