Engineering topics
Atcitty, Stanley
Publications and source records attributed to Atcitty, Stanley.
Tribal Colleges and Universities/American Indian Higher Education Consortium Advanced Manufacturing Technical Assistance Project
The National Nuclear Security Agency (NNSA) created a Minority Serving Institution Partnership Plan (MSIPP) to 1) align investments in a university capacity and workforce development with the NNSA mission to develop the needed skills and talent for NNSA's enduring technical workforce at the laboratories and production plants and 2) to enhance research and education at underrepresented colleges and universities. Out of this effort, MSIPP launched a new program in early FY17 focused on Tribal Colleges and Universities (I'CUs). The following report summarizes the project focus and status update during this reporting period.
Energy Storage & Power Electronics / Concentrating Solar Power and Thermal Energy Storage (presentation).
Abstract not provided.
Hard-switching reliability studies of 1200 V vertical GaN PiN diodes
Here, we report on reliability testing of vertical GaN (v-GaN) devices under continuous switching conditions of 500, 750, and 1000 V. Using a modified double-pulse test circuit, we evaluate 1200 V-rated v-GaN PiN diodes fabricated by Avogy. Forward current–voltage characteristics do not change over the stress period. Under the reverse bias, the devices exhibit an initial rise in leakage current, followed by a slower rate of increase with further stress. The leakage recovers after a day's relaxation which suggests that trapping of carriers in deep states is responsible. Overall, we found the devices to be robust over the range of conditions tested.
Enabling Advanced Power Electronics Technologies for the Next Generation Electric Utility Grid (Workshop Summary Report)
The role of power electronics in the utility grid is continually expanding. As converter design processes mature and new advanced materials become available, the pace of industry adoption is poised to accelerate. Looking forward, we can envision a future in which power electronics are as integral to grid functionality as the transformer is today. The Enabling Advanced Power Electronics Technologies for the Next Generation Electric Utility Grid Workshop was organized by Sandia National Laboratories and held in Albuquerque, New Mexico, July 17 - 18, 2018 . The workshop helped attendees to gain a broader understanding of power electronics R&D needs—from materials to systems—for the next generation electric utility grid. This report summarizes discussions and presentations from the workshop and identifies opportunities for future efforts.
Power Electronics Laboratory for Energy Storage Optimization (PELESO).
Abstract not provided.
Influence of surface preparation on device properties in GaN power electronics with MgO gate dielectic.
Abstract not provided.
Designing High Temperature Optocoupler for Future High Density Power Module.
Abstract not provided.
Synthesis of gamma'-Fe4N a new soft magnetic material for inductors and transformers.
Abstract not provided.
Synthesis of ?-Fe4N a new soft magnetic material for inductors and transformers.
Abstract not provided.
Hard-Switching Reliabiity Studies of 1200 V Vertical GaN PiN Diodes.
Abstract not provided.
Synthesis of ?-Fe4N a new soft magnetic material for inductors and transformers.
Abstract not provided.
Tribal Colleges and Universitie/American Indian Higher Education Consortium Advanced Manufacturing Technical Assistance Project.
The National Nuclear Security Agency (NNSA) created a Minority Serving Institution Partnership Plan (MSIPP) to 1) align investments in a university capacity and workforce development with the NNSA mission to develop the needed skills and talent for NNSA’s enduring technical workforce at the laboratories and production plants and 2) to enhance research and education at under-represented colleges and universities. Out of this effort, MSIPP launched a new program in early FY17 focused on Tribal Colleges and Universities (TCUs). The following report summarizes the project focus and status update during this reporting period.
Role of Power Electronics and Power Conversion Systems in Grid-Tied Energy Storage.
Abstract not provided.
Development of lattice-matched MgCaO gate oxides for (Al)GaN power transistors.
Abstract not provided.