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US 11,898,223 B2Granted
Degradable metal matrix composite
AssigneeTerves, LLC
InventorsAndrew J. Sherman, Nicholas Farkas, David Wolf
Life of this patent
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Abstract
The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations.
Claims13
A method for forming a degradable composite, said method comprises:
- a. providing ceramic particles, a plurality of said ceramic particles having a hardness of greater than 50 HRC;
- b. providing one or more galvanically-active elements selected from the group consisting of iron, carbon, nickel, copper, cobalt, gallium, indium, and titanium;
- c. combining ceramic particles and said one or more galvanically-active elements with a degradable metal material, said degradable metal material selected from magnesium, magnesium alloy including greater than 50 wt. % magnesium, and an aluminum alloy;
- d. dispersing said plurality of ceramic particles and said one or more galvanically-active elements in said degradable metal material while said degradable metal material is in a molten state to form a mixture;
- and,
- e. cooling said mixture to form said degradable composite, said degradable composite having a degradation rate of at least 5 mg/cm2/hr. in freshwater or brine at a temperature of at least 90° C.
3 more elements
Dependencies are inferred from the claim text.