Award Data

The broader impact/commercial potential of this Small Business Technology Transfer Phase II project is to demonstrate a low cost, environmentally friendly co-extrusion fabrication method for producing high surface area micro- and nanofiber based nonwoven fuel filter sheets. The micro-/nanofiber nonwoven structures are fabricated from two different hydrophilic and hydrophobic polymers in a melt co- ...

This Small Business Technology Transfer (STTR) Phase II project develops eWriter devices for classroom use as a sustainable paper replacement technology and an effective tool for student-teacher interaction. The eWriters provide a paper-like writing experience and electronically capture, store, and transfer handwritten text and images. For education, eWriters introduce a sustainable paper replacem ...

The broader impact/commercial potential of this Small Business Technology Transfer (STTR) Phase I project is to shift current practices in bone fracture fixation care from using permanent metal implants to biodegradable metal implants (screws, plates, pins, rods, etc.). A promising biodegradable metal that is gaining widespread attention is magnesium. This project will advance magnesium implant te ...

Computational fluid dynamics (CFD) simulations are routinely used by NASA to optimize the design of propulsion systems. Current methods for CFD modeling rely on general materials properties to determine fluid structure interactions. This introduces uncertainty when modeling extreme conditions, where materials degrade and properties may change as a consequence. This also limits the use of CFD as a ...

High-energy space radiation from Galactic Cosmic Rays and Solar Particle Events (SPEs) pose significant risks to equipment and astronaut health in NASA missions. In particular, energetic particles from SPEs associated with flares and coronal mass ejections (CMEs) constitute a highly dynamic and penetrating radiation environment that may adversely affect not only beyond-Low-Earth-Orbit missions, bu ...

Current selective laser melting additive manufacturing (AM) systems do not have adequate process control features for wide-spread adoption across NASA. In this project Mound Laser & Photonics Center (MLPC) will work with Wright State University (WSU) to implement a novel system for layer-by-layer in-process monitoring for AM. The key innovation in this work will be the use of a line-laser profil ...

This STTR project seeks to develop a fast predictive model for selective laser melting (SLM) processes and then integrate that model with an SLM chamber that allows full control of process variables and is equipped with in-process sensors. The combination will create a closed loop in which the model suggests process parameter settings for test builds and the sensors provide feedback to the model. ...

Low cost access to space is essential for continued commercial exploitation of near-earth environments, and to support future science missions. A serious limitation on the cost of space access is the available propellants and propulsion system technologies for launch, orbital insertion, maneuvering and orbital reinsertion, and reaction and attitude control.This Phase I STTR program will validate i ...

The ability to assign a level of confidence for build quality is fundamental to the deployment of powder bed technology. Accordingly, the research objective of this work is to use probability theory as a glue to combine the physics-based models used for the selection of processing parameters together in order to produce quality deposits using the following approach: (1) Use probability theory as ...

In Phase I of this project MLPC, WSU, and AFIT were successfully able to identify several optical data features that are indicative of the quality of components built with the selective laser melting additive manufacturing process. Four unique optical sensors were identified to collect this information and they include infrared and visible wavelength high-speed cameras and spectrometers. The sen ...