采用工业ZrO2,Al2O3为原料,通过适当的工艺制备出ZrO2-Al2O3复相陶瓷.研究结果表明:添加Al2O3可有效地抑制ZrO2晶粒的生长,有利于使ZrO2晶粒以亚稳四方相存在,从而提高材料的强度与断裂韧性.Al2O3质量分数为20%时,复相陶瓷的抗弯强度、断裂韧性分别为676.7MPa,10MPa*m1/2.相变增韧与颗粒弥散增韧作用相互叠加提高了复相陶瓷材料的力学性能.
参考文献
| [1] | 周玉.陶瓷材料学[M].哈尔滨:哈尔滨工业大学出版社,1995:173. |
| [2] | Upadhyaya D D;Dalvi P Y;Dey G K .Processing and properties of Y-TZP/Al2O3 composites[J].Journal of Materials Science,1993,28:6103-6106. |
| [3] | Tskuma K;Ueda K .Strength and fracture toughness of isostatically hot-pressed composites of Al2O3 and Y2O3 partially stabilized zirconia[J].Journal of the American Ceramic Society,1985,68(01):4-5. |
| [4] | Tskuma;Shimada M .Thermal stability of Y2O3 partially stabilized zirconia(Y-PSZ)and Y-PSZ/Al2O3 composites[J].Journal of Materials Science Letters,1985,4:857-861. |
| [5] | RAJENDRAN S;Swain M V;Dossell H J .Mechanical properties and microstructures of co-precipitation derived tetragonal Y2O3-ZrO2-Al2O3 composites[J].Journal of Materials Science,1988,23:1085-1813. |
| [6] | SHI J L;Li B S;Yen T S .Mechanical properties of Al2O3 particle-Y-TZP matrix composite and its toughening mechanism[J].Journal of Materials Science,1993,28:4019-4022. |
| [7] | 余明清,范仕刚,孙淑珍,雷家珩.Al2O3增强ZrO2陶瓷的制备及性能研究[J].硅酸盐通报,2001(02):7-10. |
| [8] | 张玉峰;郭景坤.Y-TZP/Al2O3复相陶瓷的液相烧结及显微结构[J].无机材料学报,1998(08):599-602. |
| [9] | 陈志刚,陈雪梅,刘苏,刘军.颗粒弥散强化复相陶瓷[J].江苏理工大学学报（自然科学版）,2000(06):90. |
| [10] | 高濂;郝元恺.Y-TZP陶瓷中ZrO2颗粒大小对相变增韧的影响[J].中国科学A辑,1988(01):95-103. |
| [11] | 张长瑞;郝元恺.陶瓷基复合材料--原理、工艺、性能与设计[M].长沙:国防科技大学出版社,2001:109. |
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