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US 8,523,997 B2Granted
Cellular phosphate ceramics and methods of manufacture and use
AssigneeEngineered Arresting Systems Corporation
InventorsSilvia C. Valentini, Youhong Li, Anthony Mario Coratolo
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Abstract
Embodiments of the present invention provide cellular phosphate bodies formed using specialized steps to ensure a specific strength range, and specifically a compressive strength less than 100 pounds per square inch. Further embodiments relate to uses for various phosphate ceramics as vehicle arresting systems.
Claims22
A cellular phosphate ceramic material, comprising:
- a binder comprised of a phosphate compound and a metal oxide, wherein the binder is mixed with water to form a slurry;
- and
- a foam;
- wherein the foam is combined with the slurry in an amount effective to form a cellular phosphate ceramic material having a 28-day compressive strength of less than 100 psi.
1 more element
A cellular phosphate ceramic material made by:
- (a) mixing potassium phosphate and magnesium oxide to form a binder;
- (b) adding one or more fillers;
- (c) mixing the binder and filler(s) with water to form a slurry;
- (d) obtaining or making a foam;
- (e) blending sufficient foam and binder, wherein the foam structure is preserved;
- and
- (f) curing the ceramic material to form a cellular phosphate material having a 28-day compressive strength of less than 100 psi.
4 more elements
Dependencies are inferred from the claim text.