Roozbeh Salary
Marshall University, WV·Engineering
Phones, sensors and computers depend on ever-smaller electronic parts, and making them smaller usually takes costly chip factories. Aerosol jet printing (AJP) offers another route.
- Fields
Engineering
Materials Science
- Topics
aerosol jet printing
printed electronics
additive manufacturing
- Grants
- 1 known grant, last ended Sep 2026
What they work on
- Identify the airflow effects that set feature size and resolution in aerosol jet printing, using computational fluid dynamics (CFD) simulations of how gas and ink droplets move.
- Model turbulent ink atomization, droplet transport and deposition within the 3D geometry of several aerosol jet print heads with different aerosol handling designs.
- Check the CFD predictions against experimental measurements of deposition resolution carried out at NASA's Marshall Space Flight Center.
More about the research
It sprays a fine mist of functional ink through a nozzle to "write" circuits, sensors and optical devices directly onto a surface. However, AJP cannot yet print features smaller than a micrometer, largely because the airflow physics inside the printer is complex and poorly understood. This project asks which airflow effects control how finely AJP can deposit material.
Why it matters
Printing electronics below the micrometer scale is not possible today with AJP. Pinpointing the airflow effects that limit resolution could guide better print-head designs, which NASA plans to build and test. This could eventually help U.S. manufacturers make sensors, optoelectronics and fine-pitch electronics by direct printing.
Known grants
From NIH and NSF research grants. Labs often have other funding we can't see.
Closest labs
Yang Cao
Montana State University, MT·Engineering
Use machine learning to map how the composition of metallic nanoparticle inks controls their rheological (flow) properties, speeding up ink development for electrohydrodynamic (EHD) 3D printing.
Olivier Desjardins
Cornell University, NY·Engineering
Develop a piecewise-quadratic interface representation that captures liquid sheets and ligaments thinner than one simulation grid cell, so that computers can predict when and how liquids break apart.
Arunkumar Subramanian
University of Illinois Chicago, IL·Engineering
Test whether nanoscale nozzles with on-chip electrodes enable sub-continuum nano-dripping, ejecting droplets smaller than 20 nanometers under very low electric stress, using the silicon-based SNAP-Chip printer.
The school
Marshall University: 3 labs on PI Pages, $39M a year on research, 28 research doctorates a year.
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