The Effect of Thermal Annealing on Mechanical and Optical Properties of MgAl2O4 Ceramics Fabricated by Spark Plasma Sintering
摘要
The samples of MgAl2O4 ceramics are manufactured by spark plasma sintering at 1300°C and 100 MPa during 20 minutes. Their thermal annealing is conducted in an air atmosphere in a temperature range from 700 to 1300°C for 1 to 30 hours. Their microstructure is analyzed by the X-ray phase analysis and scanning electron microscopy. The influence of thermal treatment parameters on optical and mechanical characteristics of this ceramics is discussed.