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  • 2015-2019  (1)
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    Nuclear Rocket Ceramic Metal Fuel Fabrication Using Tungsten Powder Coating and Spark Plasma Sintering (2017)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: Nuclear thermal propulsion is an enabling technology for crewed Mars missions. An investigation was conducted to evaluate spark plasma sintering (SPS) as a method to produce tungsten-depleted uranium dioxide (W-dUO2) fuel material when employing fuel particles that were tungsten powder coated. Ceramic metal fuel wafers were produced from a blend of W-60vol% dUO2 powder that was sintered via SPS. The maximum sintering temperatures were varied from 1,600 to 1,850 C while applying a 50-MPa axial load. Wafers exhibited high density (〉95% of theoretical) and a uniform microstructure (fuel particles uniformly dispersed throughout tungsten matrix).
    Keywords: Propellants and Fuels; Nuclear Physics
    Type: NASA/TP-2017-218236 , M-1428
    Format: application/pdf
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