Patent
Absorber element for nuclear reactors
TLDR
An ABSORBER ELEMENT for the regulation and control of NEUTRON FLUX in a NUCLEAR REACTOR and ESPECIALLY "stackeded-ball," "STACKed-particle" or "ordered-bed" REACTORS whereIN a BODY of graphite or zirconium alloys CONTAINS a MASS OF COated ABSorber PARTICLES HAVING CORES OF HIGH-MELTING-POINT BORIDES, I.E.Abstract:
AN ABSORBER ELEMENT FOR THE REGULATION AND CONTROL OF NEUTRON FLUX IN A NUCLEAR REACTOR AND ESPECIALLY "STACKED-BALL," "STACKED-PARTICLE" OR "ORDERED-BED" REACTORS WHEREIN A BODY OF GRAPHITE OR ZIRCONIUM ALLOY CONTAINS A MASS OF COATED ABSORBER PARTICLES HAVING CORES OF HIGH-MELTING-POINT BORIDES, I.E. THE DIBORIDES OF ZIRCONIUM, VANADIUM, HAFNIUM OR TANTALUM. THE PARTICLES, HAVING A PARTICLE SIZE OF THE ORDER OF 100 TO 500 MICRONS (SEVERAL HUNDREDS OF MICRONS), ARE FORMED BY COATING THESE CORES WITH PYROLYTIC CARBON, AND CONVENTIONAL COATED-PARTICLE CARBIDES OR OXIDES.read more
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Polymer-coated carbon-clad inorganic oxide particles
TL;DR: In this article, a method for the preparation of a chromatographic support material is also disclosed which comprises coating carbon-clad inorganic oxide particles with a monomer or oligomer and cross-linking the monomer and oligomer.
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Carbon-clad inorganic oxide particles with a polymer coating thereon
Peter c,O Minnesota Mining Carr,Eric F. C,Peter W. Carr,O Minn.Min.And Manuf.Co. Hanggi,O Minnesota Mining And Funkenbusch,Thomas P. Weber,O Minnesota Mining Weber +7 more
TL;DR: A carbon-cladding inorganic oxide particle having an outermost cross-linked polymer coating was formed by placing a plurality of the particles in a reaction chamber, elevating the temperature within the chamber, reducing the pressure within a chamber, and introducing into the chamber a vapor comprising carbon and thermally decomposing the vapor so as to deposit a cladding of carbon onto the particles.
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