The present invention relates to a method for producing an antibacterial photocatalytic ceramic that comprises: making available amorphous Ti; making available a biomimetic material or a biomaterial based on calcium phosphate; functionalizing said biomimetic material or said biomaterial based on calcium phosphate, with said amorphous Ti, obtaining a functionalized and oriented composite; adding said functionalized composite to a ceramic mixture, and/or applying said functionalized composite on a ceramic semi-finished product, where ceramic semi-finished product means the ceramic material before baking; applying said functionalized composite on a ceramic semi-finished product; baking at a temperature between 600 and 1400 C., preferably between 900 and 1300 C., for a time that varies from 20 to 500 minutes, obtaining an antibacterial photocatalytic ceramic.

The present invention further relates to a photocatalytic ceramic material that comprises a biomimetic material having a nanostructured hierarchical structure with macro and micro cavities, within which TiO.sub.2 is included in the crystalline form of rutile, and tiles, sanitary ware and tableware comprising same.

The present invention relates to a method for producing an antibacterial photocatalytic ceramic that comprises: making available amorphous Ti; making available a biomimetic material or a biomaterial based on calcium phosphate; functionalizing said biomimetic material or said biomaterial based on calcium phosphate, with said amorphous Ti, obtaining a functionalized and oriented composite; adding said functionalized composite to a ceramic mixture, and/or applying said functionalized composite on a ceramic semi-finished product, where ceramic semi-finished product means the ceramic material before baking; applying said functionalized composite on a ceramic semi-finished product; baking at a temperature between 600 and 1400 C., preferably between 900 and 1300 C., for a time that varies from 20 to 500 minutes, obtaining an antibacterial photocatalytic ceramic.

The present invention further relates to a photocatalytic ceramic material that comprises a biomimetic material having a nanostructured hierarchical structure with macro and micro cavities, within which TiO.sub.2 is included in the crystalline form of rutile, and tiles, sanitary ware and tableware comprising same.

A coating fabrication method includes providing engineered granules and thermally consolidating the engineered granules on a substrate to form a silicate-resistant barrier coating. Each of the engineered granules is an aggregate of at least one refractory matrix region and at least one calcium aluminosilicate additive region (CAS additive region) attached with the at least one refractory matrix region. In the thermal consolidation, the refractory matrix region from the engineered granules form grains of a refractory matrix of the silicate-resistant barrier coating and the CAS additive region from the engineered granules form CAS additives that are dispersed in grain boundaries between the grains.

A coating fabrication method includes providing engineered granules and thermally consolidating the engineered granules on a substrate to form a silicate-resistant barrier coating. Each of the engineered granules is an aggregate of at least one refractory matrix region and at least one calcium aluminosilicate additive region (CAS additive region) attached with the at least one refractory matrix region. In the thermal consolidation, the refractory matrix region from the engineered granules form grains of a refractory matrix of the silicate-resistant barrier coating and the CAS additive region from the engineered granules form CAS additives that are dispersed in grain boundaries between the grains.

A gas turbine engine article includes a substrate and a silicate-resistant barrier coating disposed on the substrate. The silicate-resistant barrier coating is composed of a refractory matrix and a calcium aluminosilicate additive (CAS additive) dispersed in the refractory matrix.

A gas turbine engine article includes a substrate and a silicate-resistant barrier coating disposed on the substrate. The silicate-resistant barrier coating is composed of a refractory matrix and a calcium aluminosilicate additive (CAS additive) dispersed in the refractory matrix.

A method of decontaminating a lithium conducting ceramic oxide material. The method includes soaking the lithium conducting ceramic oxide material having a first thickness of surface contaminants in a first organic solvent containing an inorganic salt at an inorganic salt concentration to obtain a soaked lithium conducting ceramic oxide material. The method further includes rinsing the soaked lithium conducting ceramic oxide material in a second organic solvent to obtain a decontaminated lithium conducting ceramic oxide material having a second thickness of surface contaminants less than the first thickness of surface contaminants.

A method of decontaminating a lithium conducting ceramic oxide material. The method includes soaking the lithium conducting ceramic oxide material having a first thickness of surface contaminants in a first organic solvent containing an inorganic salt at an inorganic salt concentration to obtain a soaked lithium conducting ceramic oxide material. The method further includes rinsing the soaked lithium conducting ceramic oxide material in a second organic solvent to obtain a decontaminated lithium conducting ceramic oxide material having a second thickness of surface contaminants less than the first thickness of surface contaminants.

An article may include a substrate including a ceramic or a ceramic matrix composite. The substrate defines a hot side surface configured to face a heated gas environment and a cool side surface opposite the hot side surface. The article also includes a cool side coating on the cool side surface. The cool side coating comprises at least one material having a flow temperature equal to or slightly less than a temperature of the heated gas environment.

A method of forming a barrier layer on a ceramic matrix composite (CMC) is described. The method includes forming a particulate surface layer comprising silicon particles on an outer surface of a fiber preform. The particulate surface layer is nitrided to convert the silicon particles to silicon nitride particles. After the nitriding, the fiber preform and the particulate surface layer are infiltrated with a molten material comprising silicon. Following infiltration, the molten material is cooled, thereby forming a ceramic matrix composite with a barrier layer thereon, where the barrier layer comprises silicon nitride and less than 5 vol. % free silicon. The barrier layer may also include silicon carbide and/or one or more refractory metal silicides.