Abstract: A process for making in-situ carbide in the form of particulate, whiskers and fibres in an inorganic composite matrix, which comprises, dissolving 38 to 73.5 Wt % of phenolic resin in an organic solvent to obtain a phenolic resin solution, adding 4.2-11.0 Wt %—of a curing agent optionally adding 9.4-12 Wt % of silicon carbide powder to obtain a resin mix followed by impregnating 1.6-6.5 Wt % of natural fibre with the said resin mix dried at 60°-70° C. for a period in the range of 1-5 hrs. to obtain a dough in the form of a composite plate sheet, drying the said composite plate or sheet at a temperature in the range of 70°-90° C. for a time period in the range of 1-2 hrs., drying the composite plate or sheet, heat treating the dried composite plate or sheet at a temperature in the range of —150°-200° C. for a period in the range of 1-2.5 hrs., impregnating the resultant composite plate or sheet with 10.

Abstract: A composition useful for making in-situ silicon carbide whiskers and fibers in an inorganic composite matrix selected from silicon carbide carbon and carbon composite matrix, wherein the said composition comprises: Natural Fiber (1.6-6.5 Wt %); TetraEthyl Orthosilicate (10.4-42 Wt %); Phenolic Resin (38-73.5 Wt %); Curing agent (4.2-11 Wt %); Optionally, Silicon Carbide (9.4-12 Wt %); Organic Solvent (requisite amount to dissolve the Phenolic resin). The fiber preferably is a natural fiber selected from the group consisting of jute, sisal, hem and other natural fiber having cellulosic or hemicellulosic constituent at its backbone. The curing agent preferably is selected from hexamine, para toluenesulphonic acid and para formaldehyde, most preferably hexamine. The molecular weight of phenolic resin preferably is in the range of 450-700, and the organic solvent preferably is selected from methanol, toluene and benzene.