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Aufsatz
Textile Waste Becomes Plastic Composites
(2023-09)
Every year, large quantities of textiles end up in landfills or in thermal recycling. However, some of this waste could also serve as raw materials for composite materials. Left-over cotton fibers of the textile industry, for example, are suitable as reinforcing fibers that enhance the mechanical properties of bio-based plastics. By using such waste streams, materials can be reinforced in a cost-effective and bio-based way in the future.
Dissertation
Analysis on Successful Project Completion in Reward-based Crowdfunding
(2023-10)
Project creators often encounter difficulties when trying to secure funding. This is primarily because traditional investors view projects as lacking equity, not attractive enough and carrying high risks. However, with the advent of Web 2.0 crowdfunding has emerged as an alternative financing option in recent years. While crowdfunding continues to foster innovation and creativity the success rate of reward-based crowdfunding campaigns is often below 50%. Consequently, project creators are actively seeking solutions ...
Dissertation
Experimental analyses of individual sustainable choices
(2023)
This dissertation complements the aforementioned studies by considering choice and allocation experiments which allow to directly examine how individuals choose between sustainable prod-ucts and their conventional counterparts. It particularly examines how different experimental designs and interventions causally affect choices between sustainable electricity contracts and investments over their conventional counterparts and provides guidance on how to analyze these choices using a Monte Carlo experiment.
Aufsatz
Beam powder bed fusion for direct microstructure design – In-depth analysis of prospects and limitations of the multi spot scanning strategy
(2023)
The electron beam powder bed fusion process generally results in a strong 〈001〉 texture alongside the build direction for Inconel 718. This is a result of prevailing high thermal gradients between the melted surface and the solid material. However, based on specific beam movement patterns, the solidification behaviour can be altered towards an equiaxed, isotropic microstructure. The present study focuses on the “multi spot scanning” strategy directly provided by the machine manufacturer. The operation mode of the ...