Publications by authors named "Eric Schwarzer-Fischer"
Article Synopsis
- The study focused on bone regeneration in large defects using specially designed hybrid scaffolds and the growth factor rhBMP-2 in minipigs.
- Ten minipigs with bilateral mandibular defects received either rhBMP-2-loaded scaffolds or unloaded controls, and the results were monitored using CT scans and histological evaluations over three months.
- Findings showed that the rhBMP-2 group had a significantly greater area of newly formed bone compared to the control, indicating that rhBMP-2 enhances bone regeneration in critical-size defects.
We propose the use of Optical Coherence Tomography (OCT) as a tool for the quality control of 3-D-printed ceramics. Test samples with premeditated defects, namely single- and two-component samples of zirconia, titania, and titanium suboxides, were printed by stereolithography-based DLP (Digital Light Processing) processes. The OCT tomograms obtained on the green samples showed the capability of the method to visualize variations in the layered structure of the samples as well as the presence of cracks and inclusions at depths up to 130 µm, as validated by SEM images.
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- Advanced ceramics offer unique properties like high thermal and chemical resistance, making them ideal for aerospace applications, particularly in manufacturing complex structures like aerospike nozzles.
- The "MACARONIS" project, involving TU Dresden and the Fraunhofer Institute, explores the use of ceramic additive manufacturing (CerAMfacturing) to create intricate aerospike nozzles capable of 2.5 N and 10 N thrust.
- By developing specialized suspensions for ceramic AM, researchers significantly minimized cracking, leading to the production of defect-free aerospike nozzles suitable for space use.
A recently developed multi-ceramic additive manufacturing process (multi-CAMP) and an appropriate device offer a multi-material approach by vat photopolymerization (VPP) of multi-functionalized ceramic components. However, this process is limited to ceramic powders with a certain translucency for visible light. Electrically conductive ceramic powders are therefore ruled out because of their light-absorbing behavior and dark color.
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