A method for forming a ceramic matrix composite component includes forming a fibrous preform of the component with a plurality of fiber layers and a fill region disposed between one or more of the plurality of fiber layers. Ceramic particles are provided in the fill region, which is densified using chemical vapor infiltration.

A method of manufacturing a ceramic matrix composite component includes pressure casting a fibrous preform with a slurry comprising boron carbide and densifying the fibrous preform using a liquid source of carbon. The method may include forming holes in the fibrous preform before pressure casting the fibrous preform with the slurry. The method may also include sintering the boron carbide after the pressure casting. In various embodiments, the sintering may be performed before the densifying.

Methods for making densified carbon printed articles from carbon powder are described. Three-dimensional binder jet printing is used to make a printed article from the carbon powder. The printed articles are infiltrated with pitch and may be heated to graphitize at least a portion of the pitch to provide a near net shape densified carbon printed article.

Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.

A method of making a ceramic matrix composites (CMC) having superior properties at high temperatures. The CMC can include a sol gel mixture mixed or blended metal oxide particles. The sol-gel mixture can be an aqueous colloidal suspension of a metal oxide, preferably from about 10 wt % to about 25 wt % of the metal oxide, containing a metal oxide such as alumina (Al.sub.2O.sub.3), silica (SiO.sub.2) or alumina-coated silica. The mixture can be infiltrated into a ceramic fiber, gelled, dried and sintered to form the CMC of the present teachings.

The invention relates to a method for preparing a material based on an aluminosilicate selected from barium aluminosilicate BAS, barium-strontium aluminosilicate BSAS, and strontium aluminosilicate SAS, said aluminosilicate consisting of aluminosilicate with a hexagonal structure, characterised in that it includes a single sintering step in which a mixture of powders of precursors of said aluminosilicate, including an aluminium hydroxide Al(OH).sub.3 powder, are sintered by a hot-sintering technique with a pulsed electric field SPS; whereby a material based on an aluminosilicate, said aluminosilicate consisting of an aluminosilicate with a hexagonal structure is obtained. The material based on an aluminosilicate prepared by said method can be used in a method for preparing a composite material consisting of an aluminosilicate matrix reinforced by reinforcements made of metalloid or metal oxide.

The present invention relates to a technique of dramatically improving a method for causing a molten metal of an Al alloy or the like to infiltrate without pressurization into a preform obtained by molding and hardening a ceramic powder, and obtaining “a metal matrix composite formed from a ceramic powder and an Al alloy or the like” in a uniform state as a whole more simply and stably, and the present invention provides “a production method for producing a metal matrix composite containing aluminum and ceramic, the method including: obtaining a mixed body by performing molding using a mixture containing a magnesium-containing powder, a ceramic powder, and an inorganic or organic/inorganic binder that is hardened when heated to 500° C. or lower; preparing a preform by calcining the mixed body at a temperature of 500° C. or lower; and causing an Al alloy or the like to infiltrate without pressurization into the obtained preform to produce the metal matrix composite containing aluminum and ceramic, and a method for preparing the preform.”

An aerospace component may comprise a fiber reinforced composite material. The fiber reinforced composite material includes a plurality of fiber layers and a carbon matrix surrounding the plurality of fiber layers. A plurality of ceramic particles is dispersed in the carbon matrix. A first fiber layer of the plurality of fiber layers may include a carbon fiber, and a second fiber layer of the plurality of fiber layers may include a non-carbon fiber. A hardness of the non-carbon fiber is greater than a hardness of carbon fiber.

The present invention describes various methods for manufacturing gel composite sheets using segmented fiber or foam reinforcements and gel precursors. Additionally, rigid panels manufactured from the resulting gel composites are also described. The gel composites are relatively flexible enough to be wound and when unwound, can be stretched flat and made into rigid panels using adhesives.

A method for achieving sintering of ceramics at room temperature is disclosed. The method includes steps of: providing ceramic green body; placing the ceramic green body into a sealed container containing water vapor to cause the ceramic green body to soak up the water vapor to obtain an aqueous ceramic green body; removing the aqueous ceramic green body from the sealed container, and connecting a power supply to the aqueous ceramic green body; applying a voltage to the aqueous ceramic green body; and increasing the voltage to a predetermined voltage value to cause a surface discharge or an internal discharge to occur on the aqueous ceramic green body, and stopping the power supply after a predetermined time, thereby obtaining a ceramic. A ceramic formed by the method is also disclosed.