HIGH-TEMPERATURE EXTRUSION BEHAVIOR OF FINE-GRAIN ZRO2

被引：8
|
作者：
KELLETT, BJ [1 ]
机构：
[1] ECOLE POLYTECH FED LAUSANNE,CH-1007 LAUSANNE,SWITZERLAND
来源：
JOURNAL OF MATERIALS RESEARCH | 1990年 / 5卷 / 10期
关键词：
D O I：
10.1557/JMR.1990.2165
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High temperature forming of a fine-grain ceramic is demonstrated by a series of extrusion experiments with fine-grain ZrO2, 3 mole% Y2O3. Piston velocities, ranging up to 5 mm/min (for a die with an initial diameter of 30 mm and a final diameter of 10 mm), can be achieved at 1500 °C with piston stresses of 70 MPa and graphite paper lubrication. These piston velocities are consistent with a calculation based on the creep behavior of this ceramic. The calculation is based on a model of material flow through the die, consistent with experiments involving internal markers of graphite foil. © 1990, Materials Research Society. All rights reserved.
引用
收藏
页码：2165 / 2171
页数：7
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