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Development of a process to lower the thermal expansion of hot pressed niobium--graphite composites

Description: Declassified 30 Aug 1973. Recent analysis of the NERVA hot end support system revealed that the high with-grain (WG) thermal expansion and the high creep deformation of NRX-A6 NERVA-type 75 wt% niobium carbide -- 25 wt% graphite hot pressed composite material may not be entirely satisfactory in future designs. Design requirements have shown the need for a better match between the normally high average coefficient of thermal expansion ( alpha ) of the composite material and the fueled graphite. … more
Date: August 1, 1968
Creator: Blay, J.S. & Ellenburg, G.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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