ISM In-Space Manufacturing
Develop and enable the technologies, materials, and processes required to provide affordable, sustainable on-demand manufacturing, recycling, and repair during Exploration Missions.
Elrod, Leigh M.↗
Engineering topics
Hill, Curtis W.
Publications and source records attributed to Hill, Curtis W..
Micromilling of Uniform Nanoparticles for Space Applications
Fritsch micromills have enhanced one NASA lab’s ability to develop optimized ceramic nanoparticulate materials for demanding research projects, including energy storage and thermoelectric device applications.
Hill, Curtis W.↗
Materials & Process Development for Printable Electronics at MSFC
No abstract available
Hill, Curtis W.↗
NASA MSFC Materials & Process Development Flexible Sensing Technology
No abstract available
Technology Utilization↗
Solid State Ultracapacitor
An ink of the formula: 60-80% by weight BaTiO3 particles coated with SiO2; 5-50% by weight high dielectric constant glass; 0.1-5% by weight surfactant; 5-25% by weight solvent; and 5-25% weight organic vehicle. Also a method of manufacturing a capacitor comprising the steps of: heating particles of BaTiO3 for a special heating cycle, under a mixture of 70-96% by volume N2 and 4-30% by volume H2 gas; depositing a film of SiO2 over the particles; mechanically separating the particles; incorporating them into the above described ink formulation; depositing the ink on a substrate; and heating at 850-900 C for less than 5 minutes and allowing the ink and substrate to cool to ambient in N2 atmosphere. Also a dielectric made by: heating particles of BaTiO3 for a special heating cycle, under a mixture of 70-96% by volume N2 and 4-30% by volume H2 gas; depositing a film of SiO2 over the particles; mechanically separating the particles; forming them into a layer; and heating at 850-900 C for less than 5 minutes and allowing the layer to cool to ambient in N2 atmosphere.
Rolin, Terry D.↗
High Performance Composite Dielectric Ink for Ultracapacitors
The present invention is a dielectric ink and means for printing using said ink. Approximately 10-20% of the ink is a custom organic vehicle made of a polar solvent and a binder. Approximately 30-70% of the ink is a dielectric powder having an average particle diameter of approximately 10-750 nm. Approximately 5-15% of the ink is a dielectric constant glass. Approximately 10-35% of the ink is an additional amount of solvent. The ink is deposited on a printing substrate to form at least one printed product, which is then dried and cured to remove the solvent and binder, respectively. The printed product then undergoes sintering in an inert gas atmosphere.
Rolin, Terry D.↗
Overview of NASA Ultracapacitor Technology
NASA needed a lower mass, reliable, and safe medium for energy storage for ground-based and space applications. Existing industry electrochemical systems are limited in weight, charge rate, energy density, reliability, and safety. We chose a ceramic perovskite material for development, due to its high inherent dielectric properties, long history of use in the capacitor industry, and the safety of a solid state material.
Hill, Curtis W.↗
Overview of NASA Ultracapacitor Technology
NASA needed a lower mass, reliable, and safe medium for energy storage for ground-based and space applications. Existing industry electrochemical systems are limited in weight, charge rate, energy density, reliability, and safety. We chose a ceramic perovskite material for development, due to its high inherent dielectric properties, long history of use in the capacitor industry, and the safety of a solid state material.
Hill, Curtis W.↗