- In what sense is the transistor 'the most reproduced human artifact in history'?
Additive Manufacturing
3D printing of functional, composite, and optical materials.
- How does ceramic loading percentage determine whether a filament yields an enhanced polymer composite or a fully ceramic sintered part?
- What post-processing steps (debinding and sintering) are required to turn a printed green body into a fully dense ceramic part?
- What practical challenges do makers face when working with ceramic-filled filaments, including nozzle wear, particle settling, and sintering shrinkage?
- How do microscale intrabead voids and mesoscale interbead voids interact to degrade the mechanical performance of FDM-printed carbon fiber composites?
- Why does mesoscale layer orientation matter for the stress-strain response of printed polycarbonate/short carbon fiber composites?
- What kind of reduced-order model can capture void defects across microscale and mesoscale length scales in additively manufactured composites?
- Why do FDM-printed carbon fiber composite parts underperform relative to injection-molded equivalents made from the same material system?
- How can a household FDM 3D printer be used to fabricate free-standing, millimeter-scale conductive metasurfaces?
- What method is used to experimentally characterize the electromagnetic performance of 3D printed conductive metasurfaces?
- What advantages do conductive-filament FDM metasurfaces offer over conventional metasurface fabrication in terms of cost, weight, and environmental impact?
- How does adding 2.5% hemp fiber by weight change the tensile strength and Young's modulus of PLA compared to pure PLA?
- What fiber treatment and processing steps are needed to make hemp-PLA filament compatible with standard FDM extrusion?
- How does alkali (NaOH) surface treatment of natural fibers affect the mechanical properties of PLA composite filaments?
- What processing and printability challenges arise when incorporating natural fibers into FDM filament, such as moisture content and fiber length?
- Which natural fiber types are being explored for reinforcing PLA filaments, and how do they compare for FDM applications?
- What role does thermal residual stress from the 3D printing process play in causing the local progressive fiber failure that boosts sensitivity?
- How does coextruding conductive filament around continuous carbon fiber improve electrical connection reliability and noise performance in self-sensing structures?
- How does silane coupling agent (KH550) treatment of wood flour compare to acetic anhydride treatment in their effects on the mechanical properties of FDM-printed PLA biocomposites?
- What practical processing considerations, such as particle size and print speed, affect the quality of FDM-printed wood-PLA filaments?