Material extrusion additive manufacturing of dense pastes consisting of macroscopic particles
Abstract
Additive manufacturing of dense pastes, those with greater than 50 vol% particles, via material extrusion direct ink write is a promising method to produce customized structures for high-performance materials, such as energetic materials and pharmaceuticals, as well as to enable the use of waste or other locally available particles. However, the high volume fraction and the large sizes of the particles for these applications lead to significant challenges in developing inks and processing methods to prepare quality parts. In this prospective, we analyze challenges in managing particle characteristics, stabilizing the suspensions, mixing the particles and binder, and 3D printing the pastes.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 03, 2022
- Source ID
- 10.1557/s43579-022-00209-1
Entities
People
- Alexandra Dobbs
- Alexandra Marnot
- Blair K Brettmann
Organizations
- Defense Threat Reduction Agency
- National Aeronautics and Space Administration
- National Science Foundation
- Office of Naval Research
- United States Department of Education