A new material SHGY is obtained after synthesizing SrHfO3 co-doped with rare earth oxides (5 mol%Gd2O3 and 5 mol% Yb2O3). This process is carried out by a mechanical solid-state synthesis method. The synthesized powder is annealed at 1450ºC keeping rate of increase of 3ºC/min for 2hours. The phase and structural information of synthesized powder is characterized by X-Ray Diffraction (XRD) technique. The powder sample is sintered by Spark Plasma Sintering (SPS) at 1700ºC for 15 minutes to form into a pellet. The microstructure analysis is done by using Field Emission Scanning Electron Microscopy (FESEM) followed by composition analysis by Energy Dispersive Spectroscopy (EDS). The phase purity is examined by Thermal Gravimetric Analysis and Differential Thermal Analysis (TG-DTA) and studies conclude that weight loss is < 3% and there are no changes in phase transformation. Finally, Thermal Expansion Coefficient (CTE) is studied by a Dilatometer. Results stated there is an increase in the CTE in the range of 8.82-13.0 × 10− 6K− 1 calculated temperature range 100–1000ºC. This result of CTE showed there is a 19.2% (10.5 × 10− 6K− 1(200–1100ºC)) increase compared to the YSZ. This aids in the reduction of thermal mismatches between the substrate and topcoat in Thermal barrier applications (TBC).