Transpirational cooling panel
A transpirational cooling panel comprises a porous ceramic matrix composite layer and a porous high-temperature fabric layer. A machined ceramic fiber batting is located between the porous ceramic matrix composite layer and the porous high-temperature fabric layer. A ceramic stitching joins the porous ceramic matrix composite layer and the porous high-temperature fabric layer through the machined ceramic fiber batting.
1 . A polymer-containing intermediate for a transpirational cooling panel, comprising:
a ceramic fabric layer;
a porous high-temperature fabric layer;
a ceramic fiber batting comprising a machined outer surface, the ceramic fiber batting located between the ceramic fabric layer and the porous high-temperature fabric layer;
a homogeneous cellulosic matrix that binds fibers of the ceramic fiber batting to provide rigidity to the ceramic fiber batting; and
a ceramic stitching joining the ceramic fabric layer and the porous high-temperature fabric layer through the ceramic fiber batting.
2 . The polymer-containing intermediate of claim 1 , wherein the ceramic fiber batting comprises one or more of alumina, silica or mullite fibers.
3 . The polymer-containing intermediate of claim 1 , wherein the ceramic stitching comprises a stitch density of between one stitch per inch and five stitches per inch along at least one direction.
4 . The polymer-containing intermediate of claim 1 , wherein the ceramic fabric layer comprises one or more of alumina, silica, or silicon carbide.
5 . The polymer-containing intermediate of claim 4 , wherein a ceramic fiber of the ceramic fabric layer comprises one or more of aluminoborosilicate, alumina, or mullite.
6 . The polymer-containing intermediate of claim 1 , wherein the ceramic stitching comprises aluminosilicate fibers.
7 . The polymer-containing intermediate of claim 1 , wherein the polymer-containing intermediate comprises a curved configuration.
8 . A polymer-containing intermediate for a transpirational cooling panel, comprising:
a ceramic fabric layer;
a porous high-temperature fabric layer;
one or more layers of a ceramic fiber batting comprising a machined outer surface, the ceramic fiber batting located between the ceramic fabric layer and the porous high-temperature fabric layer; and
a homogeneous cellulosic matrix that binds fibers of the ceramic fiber batting to provide rigidity to the ceramic fiber batting.
9 . The polymer-containing intermediate of claim 8 , wherein the ceramic fiber batting comprises one or more of alumina, silica or mullite fibers.
10 . The polymer-containing intermediate of claim 8 , further comprising a ceramic stitching joining the ceramic fabric layer and the porous high-temperature fabric layer through the ceramic fiber batting.
11 . The polymer-containing intermediate of claim 10 , wherein the ceramic stitching comprises a stitch density of between one stitch per inch and five stitches per inch along at least one direction.
12 . The polymer-containing intermediate of claim 11 , wherein the ceramic stitching comprises aluminosilicate fibers.
13 . The polymer-containing intermediate of claim 8 , wherein a ceramic fiber of the ceramic fabric layer comprises one or more of aluminoborosilicate, alumina, or mullite.
14 . A stitched polymer-containing intermediate for a transpirational cooling panel, comprising:
a porous ceramic matrix layer;
a porous high-temperature fabric layer;
one or more layers of a ceramic fiber batting comprising a machined outer surface;
a homogeneous cellulosic matrix that binds fibers of the ceramic fiber batting to provide rigidity to the ceramic fiber batting; and
a ceramic oxide stitching joining the porous ceramic matrix layer and the porous high-temperature fabric layer through the ceramic fiber batting.
15 . A method of forming a transpirational cooling panel, comprising:
providing a polymer-containing intermediate for the transpirational cooling panel, the polymer-containing intermediate comprising
a porous ceramic fabric layer,
a porous high-temperature fabric layer,
one or more layers of a ceramic fiber batting comprising a machined outer surface,
a homogeneous cellulosic matrix that binds fibers of the ceramic fiber batting to provide rigidity to the ceramic fiber batting, and
a ceramic stitching joining the porous ceramic fabric layer and the porous high-temperature fabric layer through the ceramic fiber batting; and
removing the homogeneous cellulosic matrix from the ceramic fiber batting to restore flexibility to the ceramic fiber batting.
16 . The method of claim 15 , further comprising adhering a carrier panel to the porous high-temperature fabric layer via an adhesive.
17 . The method of claim 15 , further comprising forming a porous ceramic matrix composite layer along at least a portion of one or more lateral sides of the transpirational cooling panel.
18 . The method of claim 15 , further comprising shaping the transpirational cooling panel in a curved configuration.
19 . The method of claim 15 , wherein providing the ceramic fiber batting comprises providing one or more of alumina, silica or mullite fibers.
20 . The method of claim 15 , wherein removing the homogeneous cellulosic matrix from the ceramic fiber batting comprises heating the polymer-containing intermediate.