My research focuses on the intersection of material science, rheology, and additive manufacturing, with an emphasis on designing measurable, scalable systems for evaluating complex materials. I led the construction of a rheological laboratory for characterizing dense, highly filled suspensions—materials with challenging flow behaviors that are critical to applications ranging from ceramics to concretes. A key thrust of my work has been developing experimental protocols and custom-built tools, such as a syringe-based capillary rheometer with automated Python-based data processing, to quantify how formulation changes impact flow, structure, and performance.
Most recently, I designed a metrological framework for defining and measuring “printability” in direct ink write (DIW) additive manufacturing—an area previously limited by vague, qualitative criteria. By using Design of Experiments to identify optimal print conditions and establishing a palette of geometric primitives for standardized testing, I introduced a reproducible scoring system based on dimensional fidelity. This system not only isolates material behavior from printer and user variability but also allows practitioners to tune formulations, compare performance, and predict print success with far greater clarity. The broader aim of this work is to bridge the gap between material development and print process design—enabling more intelligent, efficient formulation of suspensions for industrial-scale additive manufacturing. The papers below illustrate this framework in practice.
All research reports linked below are marked Distribution Statement A: Approved for public release; distribution is unlimited, in accordance with DoD guidelines. Each document has undergone the appropriate public release review and was approved by the sponsoring authority prior to publication. These materials are presented here in full compliance with distribution policies to promote transparency, reproducibility, and broader scientific engagement.
These reports are reduced versions of more in-depth reports. Sensitive information has been removed to allow public distribution. However, the removal of that information reduces the scientific impact of these reports and for that reason they may not clear the threshold for publication in peer reviewed journals. Thus, they are shared here for public consumption with full consent of the funding authority.
Syringe-Based Capillary Rheometry of Dense Pastes
A method for viscosity measurements and process-ability characterizations
Oscillatory Rheometry Procedure for Highly Loaded Suspensions
Accounting for Retained Normal Force When Measuring Linear Moduli and Yield Stress
Rapid Process Parameter Discovery with Design of Experiments for Direct Ink Write Additive Manufacturing of Dense Pastes
Efforts towards a standard procedure for determining print parameters for novel materials
Direct Ink Write Additive Manufacturing Dense Paste Printability Characterization Protocol
Leveraging optical profilometry to characterize dimensional fidelity in direct ink write additive manufacturing
Please note that these are draft manuscripts.