Fluid-based lubrication systems in gearboxes are ubiquitous in present-day mechanical engineering to reduce power losses during operation, increase service life and efficiently dissipating heat. By integrating the volume of lubricating oil required for contact lubrication into the pores of a sintered component where it can extrude under load, the lubrication and sealing system can be...
With more than 82 million tons produced worldwide every year, poly-(ethylene terephthalate), PET, is one of the largest source of plastic waste. Among the various remedies sought to reduce the amount of PET into the environment, enzymatic hydrolysis holds great promise for upscaling. However, one of the challenges to overcome is the rapid loss of catalytic activity leading to incomplete...
LiCoO2 (LCO) has been proven for extensive commercial applications owing to its high specific capacity and stability. Therefore, there has been considerable interest in further enhancing its specific capacity by increasing the charging voltage. However, single-crystal LCO suffers from a significant capacity degradation when charged to 4.5 V due to the irreversible phase transition and unstable...
Hydrogen will play a significant role as an energy source and carrier. However, many material-related issues are yet to be clarified to successfully enable a hydrogen-ready energy infrastructure. In particular, hydrogen embrittlement of high-performance alloys is a well-known issue, which is still not entirely understood. Within this talk, the hydrogen embrittlement behaviour of the newly...
The demand for Li-ion batteries continues to grow each year, whether for industrial applications or electric vehicles, making the enhancement of battery performance a key focus of research. One approach to achieving higher capacities is transitioning to materials with superior properties. Silicon has attracted significant attention as an anode material due to its high specific capacity of 3579...
Nickel-aluminum bronze (CuBz) alloys are widely used due to their excellent mechanical properties and corrosion resistance. To enhance their use in high-value applications and lower the part replacement costs, improving their surface wear resistance is essential. Metal matrix composite (MMC) coatings have shown promise in this regard. One approach involves laser melting injection (LMI) of...
Organic-inorganic halide perovskites have gained a huge interest in the scientific community owing to their favorable optoelectronic properties combined with their ease of production and abundance of raw materials. In many cases, polycrystalline thin films are fabricated for which thin film crystallinity and morphology are key factors affecting the perovskite properties. In this work, we...
Transportation, particularly motorized private transport, contributes significantly to fossil fuel con-sumption. Here, transitioning to battery electric vehicles (BEVs) is an option to reduce the con-sumption of fossil fuels. Electric drives used in BEVs require the careful guidance of the magnetic flux in the rotor. The rotor comprises a stack of non-oriented electrical steel sheets....
Ti-6Al-4V is the workhorse among all titanium alloys that are processed by solidification-based AM technologies. Its popularity resides from its interesting combination of quasi-static and dynamic mechanical properties, and its relatively low density, making it a candidate material for lightweight applications.
The structural performance of L-PBF processed Ti-6Al-4V parts, however, is heavily...
