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Principal Investigator: Brian Williams, Ultramet Design and Modeling Support:

Department of Energy SBIR Phase I: Flow Channel Inserts for Dual-Coolant ITER Test Blanket Modules. Principal Investigator: Brian Williams, Ultramet Design and Modeling Support: Dr. Shahram Sharafat, Digital Materials Solutions Dr. Nasr Ghoniem, Digital Materials Solutions

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Principal Investigator: Brian Williams, Ultramet Design and Modeling Support:

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  1. Department of Energy SBIR Phase I:Flow Channel Inserts for Dual-Coolant ITER Test Blanket Modules Principal Investigator: Brian Williams, Ultramet Design and Modeling Support: Dr. Shahram Sharafat, Digital Materials Solutions Dr. Nasr Ghoniem,Digital Materials Solutions Program Duration: 9 Months, Starting June 27, 2005

  2. The primary objective of this project is to develop and demonstrate the initial feasibility of a refractory, open-cell-foam-core flow channel insert that will allow a high Pb-17Li alloy tritium breeder exit temperature of ~700°C, in support of the International Thermonuclear Experimental Reactor (ITER). Program Goal

  3. Approach & Potential Design Benefits • Ultramet will fabricate a flow channel insert composed of an • open-cell SiC foam primary structure with thin, integrally bonded and impermeable SiC facesheets. • Improved manufacturability and thermal performance over SiC/SiC • High strength, stiffness, and thermal stress resistance • Low thermal and electrical conductivity CVD SiC closeout layer applied to the surface of SiC foam (20X) ULTRAMET-DMS proposed Flow-Channel Insert configuration

  4. Task 1: FCI Modeling - Thermomechanical modeling of a SiC foam core FCI component will be performed by DMS. Task 2: FCI Development Specimen Fabrication and Testing - 3" diameter disk development specimens will be produced to demonstrate feasibility. A nominal facesheet thickness of 0.040" on 0.200" thick SiC foam has been initially targeted to prevent PbLi ingress and minimize thermal and electrical conductivity. - Materials Characterization at Ultramet: SEM, EDS, XRD Task 3: Thermal Testing - A preliminary indication of thermal performance will be obtained through oxyacetylene torch testing. Testing will be performed by imposing a relatively small-diameter torch flame to the center of one face, and a minimum 1000°C surface temperature will be generated. Task 4: Reporting Phase I Statement of Work (6/27/05-3/26/06):

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