Fabrication of tungsten--uranium dioxide honeycomb structures. Phase I. Summary report
1965
Abstract
Declassified 28 Aug 1973. W--20 vol% U0/sub 2/ honeycomb structures were successfully made by two fabrication methods. One method involved stacking of individual unsintered hexagonal tubes, followed by isostatic pressing and sintering. The other method formed the unsintered honeycomb as a unit which was then sintered. The sintered structures, eonsisting of a close array of 1-1/2 in. long hexagonal channels, had densities ranging from 94 to >97% of theoretical. In addition to honeycomb fabrication, two methods are described for cladding the interior honeycomb surfaces to prevent U0/sub 2/ loss during high-temperature operation. (7 tables, 32 figures). (auth)
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