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在3Y-TZP基体中添加平均粒径为2.7μm的TiN颗粒,利用热压烧结方法制备出TiN/3Y-TZP新型复合陶瓷材料,研究了TiN对3Y-TZP的常温力学性能、微观结构及低温抗老化性能的影响。结果表明:TiN和3Y-TZP具有良好的物理和化学相容性;TiN细化了基体材料,对3Y-TZP表现出显著的增韧补强作用,断裂韧性和抗弯强度最高分别达到13.3MPa.m1/2,1410MPa。初步研究了空气中220℃下TiN/3Y-TZP的抗老化性能,证明添加TiN颗粒可明显提高3Y-TZP的抗老化性能。
In the 3Y-TZP matrix, TiN particles with an average particle diameter of 2.7μm were added, and a new composite ceramic material of TiN / 3Y-TZP was prepared by hot-pressing sintering. The mechanical properties, microstructure and low temperature Anti-aging properties. The results show that: TiN and 3Y-TZP have good physical and chemical compatibility; TiN refinement of the matrix material, 3Y-TZP showed significant toughening and reinforcing effect, the highest fracture toughness and flexural strength reached 13.3MPa .m1 / 2,1410 MPa. The anti-aging properties of TiN / 3Y-TZP in air at 220 ℃ have been studied preliminarily. It is proved that the addition of TiN particles can significantly improve the anti-aging properties of 3Y-TZP.