Thermal stability of n-TiB2 reinforced α-Al2O3/SiC based nanocomposite sintered at 1600˚C using TG/DTA under controlled Ar atmosphere

Innovation in material science progresses the usage of Al2O3/SiC based nanocomposites gas turbine engine components, harp-shaped structure hypersonic rocket cutting tools for Ni, Al alloys, and clutch plate two-wheelers. Thermal stability is one significant properties materials. Future engines may have to operate at very high temperature that require thermally stable material. In this research, an attempt made enhance thermal nanocomposite by reinforcing 5-20 Vol. % nano Titanium Boride. Fabrication α-Al2O3/SiC with n-TiB2 was carried out through pressureless sintering 1600˚C followed cold compaction. The fabrication process a controlled Ar atmosphere. sintered samples analyzed NETZSCH STA 449F3 thermogravimetric analyzer heating rate 10˚C/min compared Al2O3/SiC. composite α-Al2O3/SiC/(5-20 %) showed good up 1488˚C 6% less mass change than addition enhanced collaboration between atoms postponed decomposition temperature. microstructure 20 vol added captured kV JSM-5600J Scanning Electron Microscopy confirmed presence n-TiB2. Also, Ti, Si, Al, O, B energy dispersive analysis X-beams (EDS).