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US 11,993,840 B2Granted
Asynchronous conversion of metals to metal ceramics
AssigneeIntalus, Inc.
InventorsPeter Oestlund, Mats Vikstroem, Timothy Hamblin-Smith
Life of this patent
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Abstract
A metal-ceramic article and method for creating the same is disclosed in which the article has undergone machining to remove outer surface volume. The intermediate layer of the article includes a gradient of a metal and metal-ceramic that diminishes toward a metal core.
Claims9
A method for creating a metal ceramic article comprising:
- providing a metal-oxide workpiece having an outer layer, with an outer layer depth, of a substantially isotropic metal-ceramic to a waste depth of said workpiece;
- machining a target volume of said workpiece to shape said workpiece into a predetermined final article volume, composed of an original surface and a machined surface, having a substantially isotropic metal-ceramic surface;
- and
- emitting directed energy upon said machined surface for spot travel surface and a duration sufficient to impart a comparable hardness between said original surface and said machined surface to result in (i) a core consisting of a metal;
- (ii) an intermediate layer, enveloping said core, consisting of a mixture of said metal and a ceramic of said metal arranged in a gradient of diminishing ceramic relative to said core;
- and (iii) an outer layer, enveloping said intermediate layer, consisting of said ceramic.
3 more elements
Dependencies are inferred from the claim text.