Ionic conductivity of eutectic mullite-zirconia fibres

被引：0
|
作者：
Carvalho, R. G. [1 ]
Figueiredo, F. M. [2 ]
Silva, R. F. [2 ]
Costa, F. M. [1 ]
机构：
[1] Univ Aveiro, Dept Phys, I3N, P-3800 Aveiro, Portugal
[2] Univ Aveiro, CICECO, Dept Mat & Ceram Engn, Aveiro, Portugal
来源：
2012 INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS HELD JOINTLY WITH 11TH IEEE ECAPD AND IEEE PFM (ISAF/ECAPD/PFM) | 2012年
关键词：
SI OXYNITRIDE GLASSES; CA-AL-SI;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Mullite-stabilized zirconia fibres were synthesized by the laser floating zone (LFZ) method. Fibres grown at 100 mm/h have fine-interpenetrating mullite-zirconia eutectic grains surrounded by an amorphous phase rich in Al, Y and Si. The crystalline phases identified by XRD are mullite with an orthorhombic crystal structure and zirconia polymorphs, occurring in the tetragonal and transformable monoclinic forms. The activation energy for the conductivity of these composites determined from Arrhenius plots between 600 degrees C and 800 degrees C is 1.16 eV.
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页数：3
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