Polymers
Selective Laser Sintering (SLS)
Fabrication and compressive behavior analysis of BCC, BFCC, and TPMS Gyroid Lattice Structures 3D printed with epoxy thermoset via selective laser sintering
This study introduces the use of epoxy-based thermoset powder in selective laser sintering (SLS) to fabricate BCC, BFCC, and TPMS Gyroid lattices with tunable thermomechanical properties. The research investigates the physical and geometric attributes of the 3D-printed parts before and after post-curing. It further assesses their compressive strength and energy absorption capabilities at both room temperature (RT) and an elevated temperature (ET) of 80◦C.
Vat Photopolymerization (VPP)
Influence of printing and post-curing parameters on the mechanical and chemical properties of stereolithographic 3D-printed material
This study assessed the impact of print orientation, layer height, and post-curing on the mechanical properties and chemical stability in the harsh environment of an SLA-printed material. The specimens were fabricated with different orientations and distinct layer heights and post-cured at different temperatures for various times followed by artificial aging in chemicals. The findings of this research address the critical gap in current research by evaluating the printing and post-processing conditions on the degradation of 3D printed polymer material providing a baseline for optimizing material performance.
Sponsors:
Los Alamos National Laboratory (LANL) |
Mechanical performance analysis of SLA 3D-printed material before and after degradation in chemical environments
This study explored the resultant material properties and resilience of SLA 3D-printed material in response to diverse chemical environments, both at room and elevated temperatures, aiming to unveil their suitability for demanding industrial applications. Through comprehensive monitoring including mechanical, chemical, and surface scanning analyses, the dynamic evolution of material characteristics was scrutinized over different time exposures.
Sponsors:
Los Alamos National Laboratory (LANL) |
Development of a novel 3D-photoprintable material with potential radiation shielding properties
In this research, a novel 3D-photoprintable material has been developed employing new resin formulations made of commercial methacrylate monomers, photoinitiators and photoabsorbers. Here, a metal powder has been selected as filler due to its superior radiation shielding properties, low toxicity, and reasonable cost.
Sponsors:
Los Alamos National Laboratory (LANL) |
Additive manufacturing of Tungsten lattice structure via Digital Light Processing
This research focuses on tungsten oxide (III) resin preparation and additive manufacturing using DLP 3D printing technology. The main goal is to fabricate tungsten lattice structures for high-temperature applications.
Fused Filament Fabrication (FFF)
Additive Manufacturing of Multi-Functional PEEK-Carbon Fiber-CNT composite Lattices for Tunable Temperature and Force Sensing
This study introduces a novel 3D printing filament combining PolyEtherEtherKetone (PEEK), Carbon Fiber (CF), and Carbon Nanotubes (CNT) to produce lattice structures with tunable thermo-piezoresistive properties. The enhanced filament demonstrates improved printability and selective sensing capabilities, offering significant advancements for applications in aerospace and biomedical fields.
Additive Manufacturing of Magnetic Actuating Soft Material Structures with Programable Young's Modulus
Post-processing and composites
FEniCS modeling and experimental validation through optical image processing of the sintering process of compact powders
Mylar Repair in Space Environments