Patent classifications
C04B2111/00362
Method for producing a ceramic moulded body
The invention relates to a method for producing a ceramic moulded body, comprising the following steps: a) producing a green body containing ceramic material, binding agents and an organic pore forming agent; b) heating the green body to a temperature higher than the sublimation and/or decomposition temperature of the pore forming agent; c) burning the green body to form a ceramic moulded body. According to the invention, the binding agent comprises polyglycols and fumaric acid.
SYSTEM FOR MODIFYING THE SURFACE PROPERTIES OF MATERIALS
The present invention concerns a method for modifying the properties of the surface (F) of a material. The method comprises the following steps: preparing a first layer (12; 12) comprising an electrically conductive material suited to serve the function of a cathode, a second layer (14) comprising an electrically conductive material suited to serve the function of an anode and an intermediate layer (16) suited to become impregnated with an electrolyte in the liquid phase or to regulate its flow between said cathode and said anode; associating an electrolyte in the liquid phase with one or more of said layers (12, 14, 16); positioning the anode or the cathode on the surface (F) to be treated; supplying power to the cathode and the anode in order to activate the electrochemical process of the electrolyte in the liquid phase for a predetermined time interval.
Systems and methods for cleanable and slip resistant tile
Disclosed herein are floor tiles comprising, for instance, a substrate and a surface coating provided on an upper surface of the substrate, wherein the surface coating comprises (i) a base formula comprising a glaze and (ii) solid particles comprising tabular alumina.
HIGH TEMPERATURE OXIDATION PROTECTION FOR COMPOSITES
An oxidation protection system disposed on a substrate is provided, which may comprise a boron layer comprising a boron compound disposed on the substrate; a silicon layer comprising a silicon compound disposed on the boron layer; and at least one sealing layer comprising monoaluminum phosphate and phosphoric acid disposed on the silicon layer.
HIGH TEMPERATURE METAL CARBIDE COATINGS
A method for forming a high temperature coating includes applying carbon powder to a surface of a carbon/carbon (C/C) composite substrate to force the carbon powder into one or more surface voids of the surface of the C/C composite substrate. The carbon powder has a substantially same composition and morphology as a surface portion of the C/C composite substrate. The method includes applying a metal slurry to the surface of the C/C composite substrate following the application of the carbon powder and reacting a metal of the metal slurry with carbon of the carbon powder and carbon of the surface portion of the C/C composite substrate to form a metal-rich antioxidant layer of a metal carbide on the C/C composite substrate.
High temperature oxidation protection for composites
The present disclosure provides a method for coating a composite structure, comprising forming a first slurry by combining a first pre-slurry composition comprising a first phosphate glass composition, with a primary flow modifier and a first carrier fluid, wherein the primary flow modifier comprises at least one of cellulose or calcium silicate; applying the first slurry on a surface of the composite structure to form a base layer; and heating the composite structure to a temperature sufficient to adhere the base layer to the composite structure.
HIGH TEMPERATURE OXIDATION PROTECTION FOR CARBON-CARBON COMPOSITES
A method for forming an oxidation protection system on a composite structure is provided, which may comprise applying a ceramic layer slurry to the composite structure, wherein the ceramic layer slurry may comprise aluminum and silicon in a solvent or carrier fluid; heating the composite structure to form a ceramic layer on the composite structure, wherein the ceramic layer may comprise aluminum nitride; applying a sealing slurry to the composite structure, wherein the sealing slurry may comprise a sealing pre-slurry composition and a sealing carrier fluid, wherein the sealing pre-slurry composition may comprise a sealing phosphate glass composition; and/or heating the composite structure to form a sealing layer on the composite structure.
Antiskid and wear-resistant glaze, antiskid, wear-resistant and easy-to-clean ceramic tile and preparation method thereof
An antiskid and wear-resistant glaze, an antiskid, wear-resistant and easy-to-clean ceramic tile and a preparation method thereof, relating to the technical field of building ceramics, are provided. This antiskid and wear-resistant glaze is prepared by antiskid and wear-resistant particles, a printing paste and sodium tripolyphosphate. This antiskid, wear-resistant and easy-to-clean ceramic tile comprises, from the bottom up, a green body layer, an overglaze layer, a decoration layer, an antiskid and wear-resistant layer and an easy-to-clean protection layer provided in turn, wherein the antiskid and wear-resistant layer is mainly prepared by antiskid and wear-resistant particles, and the easy-to-clean protection layer is mainly prepared by easy-to-clean protection particles.
High temperature oxidation protection for composites
Systems and methods for forming an oxidation protection system on a composite structure are provided. In various embodiments, an oxidation protection system disposed on a substrate may comprise a boron-silicon-glass layer formed directly on the composite structure. The boron-silicon-glass layer may comprise a boron compound, a silicon compound, and a glass compound.
High temperature oxidation protection for composites
An oxidation protection system disposed on a substrate is provided, which may comprise a boron layer comprising a boron compound disposed on the substrate; a silicon layer comprising a silicon compound disposed on the boron layer; and at least one sealing layer comprising monoaluminum phosphate and phosphoric acid disposed on the silicon layer.