采用热压烧结制备了TiC/(Al2O3/Y—TZP)纳微米复合材料,用SEM观察了复合材料断口形貌和微观结构,研究了纳米TiC含量对复合材料的力学性能的影响,结果表明:20%TIC(15%Al2O3/5Y—TZP)复相陶瓷抗弯强度和断裂韧性高达620MPa、6.8MPa·m^1/2。
Y-TZP matrix composites reinforced by TiC and Al2O3 particles are fabricated by hot-pressing. Fracture morphology and substructure are observed with SEM. The effects of TiC on mechanical properties are investigated. The results show that as TiC contents increase to 20vol%, flexural strength and fracture toughness are up to 620MPa and 6.8MPa·m^1/2.