摘要
利用ＺｒＯ２增韧陶瓷主要靠四方相ＺｒＯ２（ｔ－ＺｒＯ２）转变成单斜相（ｍ－ＺｒＯ２）的马氏体相变来实现增韧的。本文研究了Ｙ２Ｏ３和ＣｅＯ２共同稳定四方ＺｒＯ２（ＴＺＰ）制备工艺，并加入一定量的Ａｌ２Ｏ３，阻止ＺｒＯ２晶粒长大，提高材料强度。实验结果表明，经烧成的样品ＺｒＯ２的相组成为ｔ－ＺｒＯ２，晶粒粒径＜１ｕｍ样品的抗折强度和断裂韧性均有提高，可以用作增韧人工关节材料。
ZrO2 toughening ceramics were toughened by transforming tetrsgonal ZrO2 into monoclinic ZrO2 The material's strength was improyed by Y2-CeO2 stabilizing ZrO2, and adding a few of Al2O3 to obstruct the growth of ZrO2 particles. The result shows that the main phases of our Zr02 samples are tetragonal ZrO2 with less than lum particle size. They can be used as artificial joint materials because of the materials' higher bend strength and fracture toughness.
出处
《佛山陶瓷》
2000年第5期7-10,共4页
Foshan Ceramics
