Ultra-high-strength nanofibrillar Al2O3-YAG-YSZ eutectics

被引：160
作者：
Oliete, Patricia B.
Pena, Jose I.
Larrea, Angel
Orera, Victor M. [1 ]
LLorca, Javier
Pastor, Jose Y.
Martin, Antonia
Segurado, Javier
机构：
[1] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain
[2] Univ Politecn Madrid, Dept Ciencia Mat, Inst Madrilerio Estudios Avanzados Mat IMDEA Mat, E-28040 Madrid, Spain
来源：
ADVANCED MATERIALS | 2007年 / 19卷 / 17期
关键词：
D O I：
10.1002/adma.200602379
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ceramic rods consisting of bundles of well-oriented, single-crystal whiskers of Al2O3, Y3Al5O12, and ZrO2 (20 mol % Y2O3) are grown by directional solidification from the melt at high growth rates in an inert atmosphere by using the laser-heated floating zone method. The nanofibrillar eutectic exhibits an outstanding bending strength (4.6 GPa) and resistance to crack propagation perpendicular to the fibers. The figure shows a TEM image of a longitudinal cross-section of the rod.
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页码：2313 / +
页数：7
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