Research Projects

Carbon-Carbon Composite materials are coated with SiC to protect from oxidation when the applications temperature is higher than 400oC. However due to numerous applications of the material above 1700oC, development program to coat CarbonCarbon Composite with Noble Metals is initiated. Also during thermo-structural applications which demands leak tightness of C-C products like C-C combustion chamber, coating of Iridium on C-C composite is considered to be an ideal solution. Iridium (Ir) is considered as promising candidate for oxidation resistant materials at elevated temperature due to its high melting point (2430oC), good chemical stability, low oxygen permeability, impermeability to gases, good chemical compatibility and low carbon solubility below the eutectic temperature of 2100–2300oC. Considering the various merits offered by electrodeposition (ED) method for coating, it isproposed to develop the coating of Iridium (Ir) on Carbon-Carbon (C-C) Composite through ED. Also to overcome the problem of CTE mismatch between C-C and Ir, interlayer coating of Rhenium shall be provided through the same methodology.