Metal Matrix Composite for Tiles

SiC and Al powders of 30-40 micron size are alternately spread on a Kevlar or Glass fiber mesh after coating the mesh with an epoxy. The composite is compressed using dies which are fabricated using low carbon steel. The dies are heated around 200 degree centigrade to achieve a bond between the powders and the matrix fiber. The dies are made in standard sizes of the specimens for tensile testing. A different set of dies are made to create the tiles. The tensile test specimens have shown consistent results, the tensile strength depends on the composition of the powders and the material of the fiber. The tiles have been subjected to atmospheric and both low pressure and high pressure conditions. A low coeficient of thermal expansion and low value of thermal conductivity have been exhibited by the composite. The composite can be used for roof tiles. The UTS values were in the range of 50000 to 60000 psi and the hardness was 50-55 on Rockwell C scale.