CERAMICS RESEARCH AND DEVELOPMENT OPERATION QUARTERLY REPORT, OCTOBER- DECEMBER 1962

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CERAMICS RESEARCH AND DEVELOPMENT OPERATION QUARTERLY REPORT, OCTOBERDECEMBER 1962. Pu/sub 2/S/sub 3/ melted congruently at 1725 450 deg C in a 10 un. Concent 85% C under vacuum or argon and was stable to 2300 un. Concent 85% C in argon. Pu/sub 2/S/sub 3/ was not attacked by boiling, demineralized water. PuN melted congruently at 2750 450 deg C in a 75 un. Concent 85% C under nitrogen (1 atm), but dissociated at 2600 un. Concent 85% under argon or helium. Plutonium carbides and oxides of various compositions were formed by inert gas sintering of pressed mixtures of PuO/sub 2/ ... continued below

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Pages: 124

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Creator: Unknown. October 31, 1963.

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CERAMICS RESEARCH AND DEVELOPMENT OPERATION QUARTERLY REPORT, OCTOBERDECEMBER 1962. Pu/sub 2/S/sub 3/ melted congruently at 1725 450 deg C in a 10 un. Concent 85% C under vacuum or argon and was stable to 2300 un. Concent 85% C in argon. Pu/sub 2/S/sub 3/ was not attacked by boiling, demineralized water. PuN melted congruently at 2750 450 deg C in a 75 un. Concent 85% C under nitrogen (1 atm), but dissociated at 2600 un. Concent 85% under argon or helium. Plutonium carbides and oxides of various compositions were formed by inert gas sintering of pressed mixtures of PuO/sub 2/ and graphite powder. Spontaneous lattice expansion of PuC at about 0.02% per month occurred over periods extending to 15 months, with no apparent saturation. PuO/sub 2/ and MgO were immiscible in all proportions and form no compounds stable at room temperature. ThO/sub 2/ was soluble in UO/sub 2/ in all proportions, although the solution was not ideal as shown by minima in both melting point versus composition and lattice parameter versus composition curves. Small additions of PuO/sub 2/ enhanced the sinterability of ThO/sub 2/. Melting points of (Th,Pu)O/ sub 2/ solid soiutions were constant below 25 wt% ThO/sub 2/. Lattice parameters of the solid solution obeyed Vegard's law. A series of tungsten-UO/ sub 2/ cermets was fabricated by high-energy-rate impaction. The tungsten matrix was uniform and continuous at UO/sub 2/ concentrations as great as 50 wt%. A 50 wt% uranium mononitridetungsten cermet was fabricated by impaction. The impacted density, 16.3 g/cm/sup 3/, was 99.0% of the theoretical density. Uranium monosulfide impacted to 99.0% TD showed improvements in physical properties over sintered US. A UO/sub 2/--50 wt % cermet was examined at temperatures to 1500 un. Concent 85% C by reflection electron microscopy. The effects of series of photomicrographs.

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Pages: 124

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  • Other Information: Orig. Receipt Date: 31-DEC-63

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  • Report No.: HW-76300
  • Grant Number: AT(45-1)-1350
  • DOI: 10.2172/4712412 | External Link
  • Office of Scientific & Technical Information Report Number: 4712412
  • Archival Resource Key: ark:/67531/metadc1031112

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • October 31, 1963

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  • Oct. 18, 2017, 7:39 a.m.

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  • Oct. 24, 2017, 3:44 p.m.

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CERAMICS RESEARCH AND DEVELOPMENT OPERATION QUARTERLY REPORT, OCTOBER- DECEMBER 1962, report, October 31, 1963; United States. (digital.library.unt.edu/ark:/67531/metadc1031112/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.