Preparation and Research of Composite Materials of the Al2O3-ZrO2-La2O3 System

被引：0
|
作者：
Cherkasova, N. Yu. [1 ]
Antropova, K. A. [1 ]
Kuchumova, I. D. [1 ,2 ]
Fedorenko, E. A. [1 ]
Kim, E. Yu. [1 ]
Kiseleva, I. Yu. [1 ]
机构：
[1] Novosibirsk State Tech Univ, Novosibirsk, Russia
[2] Russian Acad Sci, Siberian Branch, MA Lavrentyev Inst Hydrodynam, Novosibirsk, Russia
来源：
REFRACTORIES AND INDUSTRIAL CERAMICS | 2023年 / 64卷 / 01期
基金：
俄罗斯科学基金会;
关键词：
aluminum-zirconium ceramics; LaAl11O18; sintering; crack resistance; MECHANICAL-PROPERTIES; CERAMIC COMPOSITES; STRONTIUM; ZIRCONIA; CALCIUM; AL2O3; ZTA;
D O I：
10.1007/s11148-023-00805-1
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Introduction of lanthanum oxide into an aluminum-zirconium matrix leads to the formation of LaAl11O18 during sintering in air at 1520(degrees)C for 2 h. The grain size of aluminum oxide is at the level of 0.75 mu m. The highest crack resistance (6.2 +/- 0.3 MPa center dot m(1/2)) with the selected technological parameters for obtaining the materials is found for the material with 3 wt.% LaAl11O18 . The critical stress intensity coefficient of such material is 24% higher than that of aluminum-zirconium ceramics without additives.
引用
收藏
页码：63 / 66
页数：4
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