This disclosure relates to basic inorganic compositions. Methods of providing antifungal/antibacterial resistance and/or hydrophobicity and/or corrosion resistance by coating surfaces with the basic inorganic compositions are provided. In another aspect, a silicate composition comprising at least one alkali earth metal; and a Group IV element of silicon, germanium, tin, or lead having at least one hydrocarbon moiety covalently bonded thereto is provided.

A method for applying a coating on a surface of a lamination of plies of fiber-reinforced plastic material. The surface of the lamination includes exposed ends of reinforcement fibers. The method includes selecting an electrically conductive material that is abradable in a solid state by rubbing against the surface of the lamination having exposed ends of reinforcement fibers, and rubbing the electrically conductive material against the surface of the lamination to cause particles of electrically conductive material to be abraded and deposited on the surface of the lamination.

A cloud tower (11) receives microscopic particles (18) impelled by an inert gas (17) for deposition on a porous substrate (29) having vacuum (34) disposed on opposite side. To alter the size and/or shape of the deposition field without changing the entire tower structure, a pair of flaps (43, 44) are hinged (47, 48) on one side or on a pair of opposed sides of the cloud primary tower. Another embodiment places selectable tower inserts (36, 38) within the primary tower structure, fitting therein and sealing thereto.

A cloud tower (11) receives microscopic particles (18) impelled by an inert gas (17) for deposition on a porous substrate (29) having vacuum (34) disposed on opposite side. To alter the size and/or shape of the deposition field without changing the entire tower structure, a pair of flaps (43, 44) are hinged (47, 48) on one side or on a pair of opposed sides of the cloud primary tower. Another embodiment places selectable tower inserts (36, 38) within the primary tower structure, fitting therein and sealing thereto.

A method of making a light weight component including the steps of: forming a metallic foam core into a desired configuration; applying an external metallic shell to an exterior surface of the metallic foam core after it has been formed into the desired configuration; forming an inlet opening and an outlet opening in the external metallic shell in order to provide a fluid path through the metallic foam core; and injecting a thermoplastic material into the metallic foam core via the inlet opening.

A method of making a light weight component including the steps of: forming a metallic foam core into a desired configuration; applying an external metallic shell to an exterior surface of the metallic foam core after it has been formed into the desired configuration; forming an inlet opening and an outlet opening in the external metallic shell in order to provide a fluid path through the metallic foam core; and injecting a thermoplastic material into the metallic foam core via the inlet opening.

A method of making a colored projectile is disclosed, as well as the projectile made thereby. In an embodiment, the method comprises mechanically plating a colored metal, typically in powdered form, onto the surface of a projectile, such as a frangible, copper-based bullet, a full metal jacket bullet or a total metal jacket bullet. The disclosed plating process imparts a uniform, desired color to the surface of the plated projectile.

A method of making a colored projectile is disclosed, as well as the projectile made thereby. In an embodiment, the method comprises mechanically plating a colored metal, typically in powdered form, onto the surface of a projectile, such as a frangible, copper-based bullet, a full metal jacket bullet or a total metal jacket bullet. The disclosed plating process imparts a uniform, desired color to the surface of the plated projectile.

A method for forming a metallic structure having a non-linear aperture includes providing a main tool having a formation surface corresponding to a desired structure shape of the metallic structure. The method also includes attaching a removable tool having a shape corresponding to a desired aperture shape of the non-linear aperture to the main tool. The method also includes depositing a layer of material on the formation surface using a cold-spray technique. The method also includes removing the removable tool from the layer of material such that the layer of material defines the non-linear aperture.

A method for forming a metallic structure having a non-linear aperture includes providing a main tool having a formation surface corresponding to a desired structure shape of the metallic structure. The method also includes attaching a removable tool having a shape corresponding to a desired aperture shape of the non-linear aperture to the main tool. The method also includes depositing a layer of material on the formation surface using a cold-spray technique. The method also includes removing the removable tool from the layer of material such that the layer of material defines the non-linear aperture.