A porous material is manufactured by weaving polycarbonate fibres through a
tow of carbon fibres which has been pre-impregnated with an epoxy resin. A
second layer of pre-impregnated carbon fibres are superimposed on the
woven layer and the epoxy resin is cured to bond the fibres together. A
ceramic slurry is applied and allowed To penetrate through the second
layer of fibres and part way through the woven layer of fibres to a
controlled depth before being dried to form a mask. A thermoplastic powder
is then applied to the unmasked region of the woven layer of fibres and
sintered. Finally the mask and the polycarbonate fibres are removed
chemically to produce a porous material which comprises a sintered
thermoplastic layer reinforced with carbon fibres through which channels
are provided.
Current U.S. Class: | 156/62.2; 156/155; 156/242; 156/245; 156/307.7; 181/292; 244/130; 244/208; 244/209 |
Current CPC Class: |
B29C 33/52 (20130101); B29C 67/04 (20130101); B29C 67/20 (20130101); B29C 70/086 (20130101); B64C 21/06 (20130101); B29K 2995/0065 (20130101); B64D 2033/0226 (20130101); Y02T 50/166 (20130101); B64C 2230/04 (20130101); B64C 2230/22 (20130101) |
Current International Class: |
B29C 33/52 (20060101); B29C 67/02 (20060101); B29C 70/08 (20060101); B29C 67/04 (20060101); B29C 67/20 (20060101); B64C 21/00 (20060101); B64C 21/06 (20060101); B32B 031/00 (); B64C 021/02 (); B64C 021/06 () |
Field of Search: |
;244/208,209,130 ;181/291,292,296 ;156/62.2,155,296,307.7,242,245 ;264/112
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