Explanipedia

Vanadium oxide for infrared coatings and methods thereof Open

Mark A. Rodriguez, Nelson S. Bell, Paul G. Clem, Cynthia Edney, James Griego · 2023

The present invention relates to vanadium oxide and methods of controlling reaction processes for making such materials (e.g., powders). In particular embodiments, the method includes control of oxygen partial pressure in order to kinetica…

Microfabricated particle focusing device Open

Surendra K. Ravula, Christian Lew Arrington, Jennifer K. Sigman, Darren W. Branch, Igal Brener , et al. · 2023

A microfabricated particle focusing device comprises an acoustic portion to preconcentrate particles over large spatial dimensions into particle streams and a dielectrophoretic portion for finer particle focusing into single-file columns. …

Lighted display devices for producing static or animated visual displays, including animated facial features Open

Valerie J Heilbron, Paul G. Clem, Adam Wade Cook · 2023

An illuminated display device with a base member with a plurality of cavities therein. Illumination devices illuminate the cavities and emit light through an opening of the cavities in a pattern, and a speaker can emit sounds in synchroniz…

Reduction of radar cross-section of a wind turbine Open

Jacob Jeremiah McDonald, Billy C. Brock, Paul G. Clem, Hung Loui, Steven E. Allen · 2023

The various technologies presented herein relate to formation of a wind turbine blade having a reduced radar signature in comparison with a turbine blade fabricated using conventional techniques. Various techniques and materials are presen…

Resonant dielectric metamaterials Open

Hung Loui, J. J. Carroll, Paul G. Clem, Michael B. Sinclair · 2023

A resonant dielectric metamaterial comprises a first and a second set of dielectric scattering particles (e.g., spheres) having different permittivities arranged in a cubic array. The array can be an ordered or randomized array of particle…

Solid-state lithium battery Open

Jon F. Ihlefeld, Paul G. Clem, Cynthia Edney, David Ingersoll, Ganesan Nagasubramanian , et al. · 2023

The present invention is directed to a higher power, thin film lithium-ion electrolyte on a metallic substrate, enabling mass-produced solid-state lithium batteries. High-temperature thermodynamic equilibrium processing enables co-firing o…

Self-limiting filters for band-selective interferer rejection or cognitive receiver protection Open

Christopher Nordquist, Sean Scott, Joyce Custer, Darin Leonhardt, Tyler S. Jordan , et al. · 2023

The present invention related to self-limiting filters, arrays of such filters, and methods thereof. In particular embodiments, the filters include a metal transition film (e.g., a VO.sub.2 film) capable of undergoing a phase transition th…

Airfoil-shaped micro-mixers for reducing fouling on membrane surfaces Open

Clifford K. Ho, Susan J. Altman, Paul G. Clem, Michael Hibbs, Adam W Cook · 2023

An array of airfoil-shaped micro-mixers that enhances fluid mixing within permeable membrane channels, such as used in reverse-osmosis filtration units, while minimizing additional pressure drop. The enhanced mixing reduces fouling of the …

Single-resonator double-negative metamaterial Open

Larry K. Warne, Lorena I. Basilio, William L. Langston, William A. Johnson, Jon F. Ihlefeld , et al. · 2023

Resonances can be tuned in dielectric resonators in order to construct single-resonator, negative-index metamaterials. For example, high-contrast inclusions in the form of metallic dipoles can be used to shift the first electric resonance …

Electroless process for depositing refractory metals Open

Leo J. Small, Paul G. Clem, Erik David Spoerke · 2023

The invention provides an inexpensive, scalable process for coating materials with a film of a refractory metal. As an example, the immersion process can comprise the deposition of a sacrificial zinc coating which is galvanically displaced…

Cation-enhanced chemical stability of ion-conducting zirconium-based ceramics Open

Erik David Spoerke, Paul G. Clem, Jill S. Wheeler, Leo J. Small, Jon F. Ihlefeld · 2023

At least partial substitution of zirconium by hafnium in ion-conducting zirconium-based ceramics provides enhanced chemical stability in alkaline and acid environments.

Pushing the Spatial and Temporal Limits of Thermoreflectance Measurements . Open

Wyatt Hodges, Amun Jarzembski, Brenden Herkenhoff, Benjamin Treweek, Anthony E. McDonald , et al. · 2022

Electrical conduction and polarization of silica-based capacitors under electro-thermal poling. Open

Cesar Nieves-Sanabria, Rudeger H. T. Wilke, Sean R. Bishop, Michael T. Lanagan, Paul G. Clem · 2022

Investigating High Voltage Breakdown in a Dielectric Spacer Air Gap via a Coupled Modeling-Experimental Approach. Open

Ashish Jindal, Christopher Moore, Paul G. Clem · 2022

Effects of Lightning on Pultruded Carbon Fiber Wind Blades. Open

Michelle D. Williams, Julia Tilles, Joshua Paquette, Daniel Samborsky, Paul G. Clem · 2022

the currently used carbon fiber (CF) but also as the lightning strike protection of the wind turbine blades. Wind turbines often get hit by lightning strikes due to their operating locations. LCCF can provide structural integrity to these …

Atomic step disorder on polycrystalline surfaces leads to spatially inhomogeneous work functions Open

Morgann Berg, Sean W. Smith, David Scrymgeour, Michael T. Brumbach, Ping Lu , et al. · 2022

Structural disorder causes materials’ surface electronic properties, e.g., work function (ϕ), to vary spatially, yet it is challenging to prove exact causal relationships to underlying ensemble disorder, e.g., roughness or granularity. For…

Evolution of dc conductivity of silica-based capacitors under electro-thermal poling. Open

Cesar Nieves-Sanabria, Rudeger H. T. Wilke, Sean Robert Bishop, Michael T. Lanagan, Paul G. Clem · 2022

Atomic step disorder on polycrystalline surfaces leads to spatially inhomogeneous work functions Open

Morgann Berg, Sean W. Smith, David Scrymgeour, Michael T. Brumbach, Ping Lu , et al. · 2021

Structural disorder causes materials surface electronic properties, e.g. work function ($ϕ$) to vary spatially, yet it is challenging to prove exact causal relationships to underlying ensemble disorder, e.g. roughness or granularity. For p…

Ultra-wide-band (>1 GHz) radioimaging of lab electrical breakdown. Open

Julia Tilles, Paul G. Clem · 2021

High-speed, high-fidelity radio imaging of lightning using the Long Wavelength Array at Sevilleta, New Mexico (LWA-SV). Open

Julia Tilles, Ningyu Liu, Jayce Dowell, G. B. Taylor, Paul G. Clem , et al. · 2021

break in their spectral index. We report DM measurements for 44 pulsars, mean flux density measurements for 36 pulsars, and multi-frequency component spacing and widths for 15 pulsars with more than one profile component. For 27 pulsars, w…

Progress in micron-scale field emission models based on nanoscale surface characterization for use in PIC-DSMC vacuum arc simulations. Open

Christopher Moore, Ashish Jindal, Ezra Bussmann, Taisuke Ohta, Morgann Berg , et al. · 2021

Localized Arc-Plasma Phenomena for High-Voltage Photovoltaic Power Systems. Open

Kenneth Armijo, Paul G. Clem, D. A. Kotovsky, Caroline Winters, Alvaro Cruz-Cabrera , et al. · 2021

High-fidelity modeling of breakdown in helium: initiation processes and secondary electron emission Open

Amanda Lietz, Edward V. Barnat, George Nail, Nicholas Roberds, Andrew Fierro , et al. · 2021

Understanding the role of physical processes contributing to breakdown is critical for many applications in which breakdown is undesirable, such as capacitors, and applications in which controlled breakdown is intended, such as plasma medi…

Lightning Effects on Pultruded Carbon Fiber Wind Blades. Open

Michelle D. Williams, Joshua Paquette, Paul G. Clem, Julia Tilles · 2021

the currently used carbon fiber (CF) but also as the lightning strike protection of the wind turbine blades. Wind turbines often get hit by lightning strikes due to their operating locations. LCCF can provide structural integrity to these …

Study of vacuum ultraviolet emission in helium and helium/nitrogen mixtures Open

Andrew Fierro, Jane Lehr, Benjamin Yee, Ed Barnat, Chris H. Moore , et al. · 2021

Helium is frequently used as a working medium for the generation of plasmas and is capable of energetic photon emissions. These energetic photon emissions are often attributed to the formation of helium excimer and subsequent photon emissi…

Employing Nanoscale Surface Characterizations in a Field Emission Model. Open

Matthew Hopkins, Ashish Jindal, Ezra Bussmann, Taisuke Ohta, Morgann Berg , et al. · 2020

AMPPED LDRD: Advanced Models of the Physics & Phenomena of Electrical Discharge. Open

Edward V. Barnat, Matthew Hopkins, Benjamin J. Lee, Amanda Lietz, Nicholas Roberds , et al. · 2020

This Laboratory Directed Research and Development (LDRD) project aimed at addressing an unmet need for physics-based models that enable prediction of electrical breakdown in the presence of high voltage gradients and real-world environment…

Tunable dielectric RF and microwave integrated circuits. Open

Jennifer Sigman, Paul G. Clem, Christopher Nordquist, Garth M. Kraus, Patrick Sean Finnegan · 2020

Encapsulant Void Breakdown Voltage Modeling & Experiments Open

Christopher Moore, Paul G. Clem, Laura Biedermann, William V. Miller, Mark E. Stavig , et al. · 2020

For high voltage electrical devices, prevention of high voltage breakdown is critical for device function. Use of polymeric encapsulation such as epoxies is common, but these may include air bubbles or other voids of varying size. The pres…

Ultra-wideband (>1 GHz) electromagnetic measurements of lab-based discharges and comparisons with lightning. Open

Julia Tilles, Raymond Martinez, James D. Taylor, Andrew Padgett, Paul G. Clem · 2020

and complete information beyond target detection has arisen. In the following discussion, we present conceptually a statistics, information-oriented approach to this general class of problems.

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