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Houston, TX, United States

Grant
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 99.95K | Year: 2006

High Temperature Superconductors (HTS) have been targeted for future electricity transmission; yet, present methods, which use chemical pinning to enhance the current-carrying capacity of second-generation HTS, are insufficient for the development of cost-effective, industrial manufacturing processes for HTS conductors. Current processing techniques require multiple technologically-distinct steps, resulting in increased manufacturing time. This project will develop the industrial methods and pinning techniques that can be used in situ to produce coated conductors, thereby reducing the overall production time (and thus the overall cost) of coated HTS, while simultaneously increasing the current carrying capacity of the conductors. The fabrication approach involves the in situ introduction of pinning centers in conjunction with a unique, ultra-thick, Y1Ba2Cu3O7 (YBCO) layer, in order to increase total current carrying capacity by a factor of 5 -7. Phase I will utilize a Metal Organic Chemical Vapor Deposition (MOCVD) process to fabricate thick (5¿10 microns) YBCO layers with introduced pinning centers. In Phase II, an ultra-thick-wire pilot line will be developed for the cost-effective fabrication of coated conductor wire, with current carrying capacity greater than 1,000A/cm-width, at lengths greater than 100 meters. Commercial Applications and Other Benefits as described by the awardee: The fabrication of ultra-high-current-carrying-capacity HTS wire not only would advance the development of high-field magnets for fusion energy applications, but also would deliver ultra-high-performance, low-cost HTS wire to the commercial markets for integration into motors, transformers, transmission lines, etc. The low cost of the HTS wire (projected to be approximately $10-15/kA-m) should open the HTS application market (projected over $5 billion) and lead to significant economic growth


Grant
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 99.99K | Year: 2006

The modernization and expansion of America¿s electricity delivery system is needed to ensure a more reliable and robust electricity supply. High Temperature Superconductors (HTS) are an emerging technology for this purpose; however, current techniques for producing the buffer layer, which lies between the superconducting material and its metal substrate, are cumbersome. Current buffer layers actually are comprised of multiple layers, each serving a separate function and often requiring distinctly different deposition methods. A simplified buffer architecture ¿ which could be produced via a high-rate, high-performance, cost-effective method ¿ would allow coated conductors to be produced at a lower cost and with greater efficiency. Therefore, this project will develop a high-rate, high-performance, cost effective Metal Organic Chemical Vapor Deposition (MOCVD) method for producing a single layer buffer. Phase I will prove the concept of a single layer buffer architecture obtained by MOCVD and study the minimal thickness necessary for such an architecture to be applicable to HTS coated conductors. Phase II will apply these results to the production of long lengths of coated conductor. Commerical Applications and Other Benefits as described by the awardee: A simplified, single layer buffer architecture should aid in the production of HTS wire and speed the use and application of HTS coated conductors for large power devices. The projected HTS wire cost (~ $10-15/kA-m) should open up commercial markets (in motors, transformers, transmission lines, etc.) valued at over $5B, leading to significant economic growth.


Grant
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase II | Award Amount: 742.38K | Year: 2008

One of the major factors that inhibits rapid throughput, and hence increases the cost, of coated conductors is the moderate deposition rate of high temperature superconducting films. Thus far, the approach has been to increase the deposition area using moderately rapid deposition techniques. By developing the industrial methods of ultra-fast deposition to produce coated conductors, the overall production time, and thus overall cost, of second generation coated conductors can be reduced. The Phase I project demonstrated the technical feasibility of the proposed approach. The Phase II effort will implement appropriate enhancement of ultra-fast growth rate continuous deposition, and enable further process scale-up. Commercial Applications and other Benefits as described by the awardee: The ultra-fast deposition of high current carrying capacity superconducting wire will deliver low cost, high performance superconducting wire to commercial markets for integration into motors, transformers, transmission lines, and other devices.


Grant
Agency: Department of Defense | Branch: Air Force | Program: SBIR | Phase: Phase I | Award Amount: 0.00 | Year: 2005

Advanced coated conductor development for high current carrying capacity HTS wires and tapes requires a high current density and also a large YBCO film thickness in the coated conductor. The inclusion of secondary phase particles, i.e., Chemical Pinning, is a highly viable approach to increase Jc from a production point of view, especially since in our application of metal organic chemical vapour deposition to coated conductor development, the chemical pinning step can be performed in situ during the growth of the superconducting layer without adding another step to a technological scheme. This Phase II proposal will encompass the deposition of extended lengths of YBCO coated conductor onto continuously moving buffered metallic substrates, with the integration of the Chemical Pinning approach to increase Jc through the incorporation of Y2O3 secondary phase nano-inclusions, as well as through the growth of thick YBCO layers (~ 10 m), in order to enhance the coated conductor performance to the 1,000 A/cm-width level. The existing MetOx MOCVD facilities will be utilized in the fabrication of a quantity of 10+ metres of the high performance YBCO tape. In addition, the Phase II plan will include the winding of pancake coils to test the performance of the coated conductor in actual coil configurations.


Grant
Agency: Department of Defense | Branch: Air Force | Program: SBIR | Phase: Phase II | Award Amount: 375.00K | Year: 2005

Advanced coated conductor development for high current carrying capacity HTS wires and tapes requires a high current density and also a large YBCO film thickness in the coated conductor. The inclusion of secondary phase particles, i.e., Chemical Pinning, is a highly viable approach to increase Jc from a production point of view, especially since in our application of metal organic chemical vapour deposition to coated conductor development, the chemical pinning step can be performed in situ during the growth of the superconducting layer without adding another step to a technological scheme. This Phase II proposal will encompass the deposition of extended lengths of YBCO coated conductor onto continuously moving buffered metallic substrates, with the integration of the Chemical Pinning approach to increase Jc through the incorporation of Y2O3 secondary phase nano-inclusions, as well as through the growth of thick YBCO layers (~ 10 m), in order to enhance the coated conductor performance to the 1,000 A/cm-width level. The existing MetOx MOCVD facilities will be utilized in the fabrication of a quantity of 10+ metres of the high performance YBCO tape. In addition, the Phase II plan will include the winding of pancake coils to test the performance of the coated conductor in actual coil configurations.

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