Developing Field-Assisted Assembly for the Design and Fabrication of Multiscale Functional Materials
Abstract
Abstract: We propose to develop a continuous, bottom-up processing framework for bulk materials formed from nanoparticles, which combines: (1) chemistry-controlled self-assembly of microscale clusters, (2) acoustic forces from standing waves in microchannels to assemble those clusters into mesoscale structures, and (3) fluidic printheads for direct deposition of those structures. The proposed project will establish a scientific understanding of the kinetics of these processes, and combined with simulation of particle-fluid-device interactions, identify compositions and processing parameters that enable continuous printing. This proposal will support the fundamental studies required to establish processing design rules and multi-field assembly strategies for creating bio-inspired hierarchical materials with true materials-by-design microstructural control across multiple length scales. To address the emerging material needs of the DoD the control of properties such as porosity or electrical transport across multiple lengthscales is critical. This program will generate insights that are translatable to other material systems, expanding possible materials and processing routes for patterning materials with tailored properties. More broadly, the proposed combination of self-assembly and acoustics will enable scalable manufacturing approaches for a large number of applications utilizing nanoparticles, including nanoscale filters, colloidal crystals, and structural composites. This effective integration of research and training will enable UH Manoa (UHM), a federally designated Minority-Serving Institution, to more effectively provide intellectual opportunities to its significant population of underrepresented Native Hawaiian and Pacific Islander students. The proposed research activities are closely integrated with educational and outreach activities designed to expand the STEM pipeline in HawaiÀi. Specifically, the research outcomes related to mechanical design, additive manufacturing processing, and self-assembly will be integrated into courses, inform outreach activities, and provide opportunities for students to participate in research at the forefront of additive manufacturing. The results are expected to increase participation in STEM, particularly for underserved populations (NHPI), enable broad dissemination of research findings, build research capabilities at UHM to enhance participation in DoD research programs, and improve opportunities for advanced manufacturing research and workforce development in the State of HawaiÀi.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 28, 2023
- Source ID
- W911NF2310162
Entities
People
- Tyler Ray
Organizations
- Army Contracting Command
- Office of the Secretary of Defense
- University of Hawaiʻi System