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

被引：1

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

页码：63 / 66

页数：4

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