ONR: Enhanced Superconductors for Future Naval Applications
| קרן | US Department of Defense |
|---|---|
| מדינה | U.S.A. |
| סוג | Research Grants |
| תאריך אחרון | 10/04/2018 |
| פקולטה | Engineering, Exact Sciences |
| תיאור | ONR is interested in receiving proposals in support of advancing high temperature superconducting wire technology for future naval applications. Work under this program will consist of basic and applied research. Relevant topics include:
Topic Area 1: Superconducting Materials
1.1 Path to higher temperature superconductors.
• Development of predictive models for new superconducting materials with superconducting state transitions temperatures higher than present 2G conductors.
• Synthesis of designed high temperature superconductors (HTS).
1.2 High flexibility, high current density (Je) HTS conductors.
• Mechanisms and methods of exfoliating, stacking, and re-stabilizing superconducting tapes for increased engineering current density.
1.3 Magnetic-field-orientation independent superconductors.
• Round high temperature superconductor with isotropic infield performance.
• Methods of HTS layer deposition on round substrates.
1.4 Novel formulation of Rare earth - Barium - Copper Oxide (ReBCO) and associated manufacturing processes.
• ReBCO tape formulations with highly efficient consumption of precursors.
1.5 Enhanced flux pinning for improved in-field performance.
• Investigation in novel forms of imparting microdefects into coated conductors to increase lift factor.
Topic Area 2: Superconducting Tape Processing and Modification
2.1 Advanced substrates for coated conductors.
• Electrically insulating, thermally stabilizing substrates for high temperature superconductors.
2.2 High frequency and pulsed current loss mechanisms and reduction in medium and high temperature superconductors.
• Development of novel conductor topologies to reduce AC loss components of conductors in alternating current applications.
2.3 High resistance normal-state superconducting wires.
• Development of conductor topologies that exhibit very high normal state resistance.
2.4 Enhancement mechanisms for normal zone propagation during quench.
• Investigation into distributed and uniform quenching of superconducting wire or coils for elimination or minimization of localized heating during a quench event.
Topic Area 3: Superconductors for Novel Applications
3.1 Superconducting power switching device targeting high blocking voltage and no on-state resistance, no/low switching loss.
• Investigation into superconducting nano-wires arrangements terminal device (source, drain, gate) scalable to power switching applications.
• Novel concepts of cryogenic power switching devices with greater than 2 orders of magnitude reduction in losses in a superconducting or cryogenic environment compared to ambient power switching devices.
3.2 Theory, advanced materials, or approaches for low-loss or loss-less power delivery through a warm to cold cryogenic current transition.
• Materials development with characteristically high electrical to thermal conductivity ratio.
3.3 Materials, topologies, concepts in superconducting or cryogenic capacitors.
Topic Area 4: Superconducting State Protections
4.1 Novel cryogenic refrigeration cycles
• Investigation into novel cryogenic refrigeration cycles scalable in capacity from 0.5 to 2 kilowatt (kW) with cycle efficiency greater than 30% of Carnot.
4.2 Novel vacuum-less thermal insulation paradigm to achieve multi-layer insulation (MLI) levels of effective thermal conductivity.
• Investigation into novel materials or metamaterials with characteristically low thermal conductivity approaching the effective thermal conductivity of vacuum enabled multi-layer insulation.
4.3 Mechanisms for early onset of quench.
• Investigation into detectable phenomena prior to onset of superconducting quench.
• Exploitation of early detection indications using fiber optics, acoustic emissions, radio frequency (RF) approaches, or other novel quench detection approaches.
4.4 Mechanisms for rapid establishment of superconducting state.
• Investigation into novel approaches to establish the superconductive state in cables or coils prior to reaching conventional thermal equilibrium at cryogenic temperatures.
Funding: $150,000 total Duration: 2-3 years
Research Authority due date: 4.2.18 White paper (encouraged) due date: 10.2.18 Full propsal due date: 10.4.18
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| קבצים מצורפים | |
| קישור | לאתר |
| עדכון אחרון | עדכון אחרון: 16/01/2018 |
