An example article includes a substrate and a barrier coating on the substrate extending from an inner interface facing the substrate to an outer surface opposite the inner interface. The barrier coating includes a bulk matrix and a plurality of discrete plugs inset within the bulk matrix and dispersed across the outer surface of the barrier coating. An example technique includes forming the barrier coating on the substrate of a component.

A method of manufacturing a bituminous roofing membrane may include saturating a nonwoven material with a bituminous material to form a bituminous membrane. The method may include applying a first granular material to a top surface of the bituminous membrane. The method may include removing at least some of the first granular material that has not adhered to the bituminous membrane. The method may include heating the bituminous membrane. The method may include applying a second granular material to the bituminous membrane while the bituminous membrane is in a generally planar configuration.

A method includes forming a crystallized metal carbide undercoat on a surface of a carbon-carbon composite substrate. The method further includes forming an overcoat on a surface of the undercoat. The overcoat includes a plurality of crystallized ultra-high melting point overcoat layers. Each overcoat layer is sequentially formed by applying a mixture to a surface of an underlying layer and heating the mixture. The mixture includes a plurality of ultra-high melting point refractory ceramic particles and a pre-ceramic polymer. The mixture is heated to a heat treatment temperature to pyrolyze the pre-ceramic polymer and form the overcoat layer in an inert atmosphere or under vacuum. As a result, the overcoat layer includes a crystallized ultra-high melting point polymer-derived ceramic matrix that includes the plurality of ultra-high melting point refractory ceramic particles.

A method includes forming a crystallized metal carbide undercoat on a surface of a carbon-carbon composite substrate. The method further includes forming an overcoat on a surface of the undercoat. The overcoat includes a plurality of crystallized ultra-high melting point overcoat layers. Each overcoat layer is sequentially formed by applying a mixture to a surface of an underlying layer and heating the mixture. The mixture includes a plurality of ultra-high melting point refractory ceramic particles and a pre-ceramic polymer. The mixture is heated to a heat treatment temperature to pyrolyze the pre-ceramic polymer and form the overcoat layer in an inert atmosphere or under vacuum. As a result, the overcoat layer includes a crystallized ultra-high melting point polymer-derived ceramic matrix that includes the plurality of ultra-high melting point refractory ceramic particles.

The present invention relates to a method for the manufacturing of a coated panel, in particular a wall, ceiling or flooring panel for applications in outdoor areas, as well as such a panel. The method comprises the following steps: providing a carrier plate of mineral wool and/or glass wool, comprising a front side and a rear side, applying a primer onto the front side of the carrier plate, thereafter applying a liquid first oligomer in an amount of 30 to 150 g/m.sup.2 onto the front side of the carrier plate; thereafter applying a liquid second oligomer, which differs from the first oligomer, in an amount of 30 to 180 g/m.sup.2 onto the wet surface of the before applied layer of the first oligomer.

The present invention relates to a method for the manufacturing of a coated panel, in particular a wall, ceiling or flooring panel for applications in outdoor areas, as well as such a panel. The method comprises the following steps: providing a carrier plate of mineral wool and/or glass wool, comprising a front side and a rear side, applying a primer onto the front side of the carrier plate, thereafter applying a liquid first oligomer in an amount of 30 to 150 g/m.sup.2 onto the front side of the carrier plate; thereafter applying a liquid second oligomer, which differs from the first oligomer, in an amount of 30 to 180 g/m.sup.2 onto the wet surface of the before applied layer of the first oligomer.

In some examples, an article includes a ceramic or a ceramic or ceramic matrix composite (CMC) substrate; and an abradable coating on the CMC substrate. The abradable coating includes a plurality of first rare earth (RE) silicate layers in an alternating arrangement with a plurality of second RE silicate layers, wherein the first RE silicate layers include a rare earth monosilicate and the second RE silicate layers include a rare earth disilicate, and wherein the first RE silicate layers include a greater concentration of the rare earth monosilicate than the second RE silicate layers.

In some examples, an article includes a ceramic or a ceramic or ceramic matrix composite (CMC) substrate; and an abradable coating on the CMC substrate. The abradable coating includes a plurality of first rare earth (RE) silicate layers in an alternating arrangement with a plurality of second RE silicate layers, wherein the first RE silicate layers include a rare earth monosilicate and the second RE silicate layers include a rare earth disilicate, and wherein the first RE silicate layers include a greater concentration of the rare earth monosilicate than the second RE silicate layers.

A ceramic membrane filter includes a porous substrate including cells through which a fluid flows, an intermediate membrane formed on the porous substrate, and a separation membrane formed on the intermediate membrane. In this ceramic membrane filter, the percentage of the number of cells having cracks with a size of 4 μm or less relative to the total number of cells is 9% or less.

A part coated in a protective coating forms a thermal barrier and includes a ceramic first layer. The protective coating further includes a second layer present on the first layer and including a majority by weight of a first feldspar mineral having a melting temperature higher than or equal to 1010 C. and presenting a thickness greater than or equal to 10 m.