A method of preparing a fibrous preform for use in a ceramic matrix composite comprises coiling a serving yarn around a ceramic tow to form a served tow, the serving yarn comprising a polymer material with embedded ceramic particles, incorporating the served tow into a woven fabric, the woven fabric comprising a plurality of served tows, and removing the polymer material of the serving yarn such that the embedded ceramic particles remain in the woven fabric.

A cut resistant fabric and a method of manufacturing a cut resistant fiber is disclosed herein. The fabric comprises a Ultra High Molecular Weight Polyethylene (UHMWPE) material and a sheet shaped wollastonite filler. The sheet shaped wollastonite filler is treated with a coupling agent and mixed with the UHMWPE material. A thickness of the sheet shaped wollastonite filler is less than 10 micrometers (m). The method comprises providing the sheet shaped wollastonite filler having a thickness of less than 10 m and treating the sheet shaped wollastonite filler with a coupling agent at a first predefined temperature to obtain a uniform solution. The method further comprises mixing the uniform solution with a fiber solution comprising UHMWPE resin at a second predefined temperature.

Ceramic matrix composite components and methods for fabricating ceramic matrix composite components are provided. In one example, a ceramic matrix composite component includes a ceramic matrix composite body. The ceramic matrix composite body includes a layer-to-layer weave of ceramic fibers and a layer of 1-directional and/or 2-directional (1D/2D) fabric of ceramic fibers disposed adjacent to the layer-to-layer weave. When stressed, the ceramic matrix composite body forms a relatively high through-thickness stress region and a relatively high in-plane bending stress region. The layer-to-layer weave is disposed through the relatively high through-thickness stress region and the layer of 1D/2D fabric is disposed through the relatively high in-plane bending stress region.

A graphene oxide/polypropylene heat-resistant high-strength composite profile and a preparation method thereof. The composite profile is a graphene oxide/polypropylene-based reinforced plain weave composite resin material, which is a heat-resistant high-strength composite profile prepared from a graphene oxide/polypropylene-based woven plain weave fabric and a fiber heat-insulating material which are made into a layered spacing structure composite flat net, and a resin composite material. The preparation method comprises the following steps: preparation of a graphene oxide/polypropylene-based woven plain weave fabric; preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material; preparation of a multilayer graphene oxide/polypropylene-based reinforced plain weave composite material; and preparation of a resin composite material. The present invention has the advantages of convenient operation and excellent properties.

A method for manufacturing a turbine engine vane a root connected to a blade extending in a longitudinal direction includes the steps of providing a root; and providing mold with a first cavity and a second cavity that together define a recess in which the vane is formed. The recess includes a first space in which the blade is formed and a second space in which the root is formed. The method further includes the steps of providing aluminum strips; positioning a fibrous reinforcement; arranging the vane root in the second space; and injecting a foam comprising aluminum or injecting an aluminum alloy into the first space of the recess of the mold such that the foam impregnates the fibrous reinforcement.

A method for manufacturing a turbine engine vane a root connected to a blade extending in a longitudinal direction includes the steps of providing a root; and providing mold with a first cavity and a second cavity that together define a recess in which the vane is formed. The recess includes a first space in which the blade is formed and a second space in which the root is formed. The method further includes the steps of providing aluminum strips; positioning a fibrous reinforcement; arranging the vane root in the second space; and injecting a foam comprising aluminum or injecting an aluminum alloy into the first space of the recess of the mold such that the foam impregnates the fibrous reinforcement.

Provided are an inorganic-fiber fabric for a construction membrane material and construction membrane material having excellent resistance to heat damage, great ease of weaving, and high applicability for use in a construction membrane material. An average Al.sub.2O.sub.3 content of a warp, At, and an average Al.sub.2O.sub.3 content of a weft, Ay, are 17.5 mass % or more; a mass per unit length of the warp, Tt, and a mass per unit length of the weft, Ty, are within a range of 100 to 600 g/1000 m; a weave density of the warp, Wt, and a weave density of the weft, Wy, are within a range of 10.0 to 55.0 filaments/25 mm; a ratio of Tt to Ty, Tt/Ty, is within a range of 0.66 to 1.50; and At, Ay, Tt, Ty, Wt, and Wy satisfy the following formula (1-1).

[00001]$\begin{array}{cc}316.5?{\mathrm{Wt}}^{1/3}?{\mathrm{Tt}}^{1/2}/\left(\mathrm{At}/100\right)+{\mathrm{Wy}}^{1/3}?{\mathrm{Ty}}^{1/2}/\left(\mathrm{Ay}/100\right)?550.0& \left(1-1\right)\end{array}$

Provided are an inorganic-fiber fabric for a construction membrane material and construction membrane material having excellent resistance to heat damage, great ease of weaving, and high applicability for use in a construction membrane material. An average Al.sub.2O.sub.3 content of a warp, At, and an average Al.sub.2O.sub.3 content of a weft, Ay, are 17.5 mass % or more; a mass per unit length of the warp, Tt, and a mass per unit length of the weft, Ty, are within a range of 100 to 600 g/1000 m; a weave density of the warp, Wt, and a weave density of the weft, Wy, are within a range of 10.0 to 55.0 filaments/25 mm; a ratio of Tt to Ty, Tt/Ty, is within a range of 0.66 to 1.50; and At, Ay, Tt, Ty, Wt, and Wy satisfy the following formula (1-1).

[00001]$\begin{array}{cc}316.5?{\mathrm{Wt}}^{1/3}?{\mathrm{Tt}}^{1/2}/\left(\mathrm{At}/100\right)+{\mathrm{Wy}}^{1/3}?{\mathrm{Ty}}^{1/2}/\left(\mathrm{Ay}/100\right)?550.0& \left(1-1\right)\end{array}$

A method of forming a ceramic matrix composite includes three-dimensionally weaving a fibrous preform, the preform including a plurality of warp tows, a plurality of weft tows, and a plurality of z-fibers passing orthogonally between the plurality of warp and the plurality of weft tows. The method further includes debulking the preform, decomposing the plurality of z-fibers to form a respective plurality of z-channels in the preform, and densifying the preform with a ceramic matrix.

A method of forming a ceramic matrix composite includes three-dimensionally weaving a fibrous preform, the preform including a plurality of warp tows, a plurality of weft tows, and a plurality of z-fibers passing orthogonally between the plurality of warp and the plurality of weft tows. The method further includes debulking the preform, decomposing the plurality of z-fibers to form a respective plurality of z-channels in the preform, and densifying the preform with a ceramic matrix.