Method of forming composite ceramic targets
AssigneeAdvanced Applied Physics Solutions, Inc.
InventorsMarik Dombsky, Victoire Hanemaayer
Life of this patent
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Abstract
Disclosed are processes and compositions for fabricating irradiation targets from slurry compositions using a slip casting method to form a layer of the slurry composition on a substrate. The layer of slurry is allowed to dry on the substrate to produce a green cast layer that may then be cut, milled or otherwise machined to form intermediate targets having one or more predetermined configurations. These intermediate targets are subsequently subjected to a thermal process by which organic components remaining in the green cast layer are driven off and/or oxidized to form a densified, substantially inorganic, layer that has a density below that of the primary particles.
Claims19
A method of fabricating an irradiation target, comprising:
- combining a finely divided metal carbide powder and a solvent to obtain an initial slurry;
- incorporating additional organic components into the initial slurry to produce a final slurry;
- depositing a layer of the final slurry on a substrate;
- evaporating a major fraction of the solvent to obtain a green cast article;
- and
- sintering the green cast article under conditions sufficient to remove substantially all remaining organic material and to sinter the metal carbide powder to obtain an irradiation target having a densified ceramic layer disposed on the substrate, wherein the substrate is a flexible graphitic carbon foil.
A method of fabricating an irradiation target, comprising:
- combining a finely divided ceramic material and a dispersant to obtain an initial slurry;
- incorporating additional organic components into the initial slurry to produce a final slurry;
- depositing a layer of the final slurry on a substrate;
- evaporating a major fraction of the dispersant to obtain a green cast article;
- and
- sintering the green cast article under conditions sufficient to remove substantially all remaining organic material and to sinter the ceramic material to obtain an irradiation target having a densified ceramic material layer disposed on the substrate, wherein the substrate is a flexible graphitic carbon foil.
Dependencies are inferred from the claim text.