Complex impedance analysis on the orientation effect of whiskers in oriented silicon carbide whisker/silicon nitride composites

Authors
Wang, CA Huang, Y Xie, ZP Li, Y Zhang, ZT
Citation
Ca. Wang et al., Complex impedance analysis on the orientation effect of whiskers in oriented silicon carbide whisker/silicon nitride composites, J AM CERAM, 83(11), 2000, pp. 2689-2692
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
83
Issue
11
Year of publication
2000
Pages
2689 - 2692
Database
ISI
SICI code
0002-7820(200011)83:11<2689:CIAOTO>2.0.ZU;2-O
Abstract
The effect of whisker orientation on the electrical properties of SiCw/Si3N 4 composites was investigated, using the principle of complex impedance. Th e impedance spectra of the composites exhibited significant dependence on w hisker orientation. Based on the experimental results and the microstructur e of the composites, the impedance mechanisms were discussed and a correspo nding equivalent-circuit model was presented, which agreed well with the ex periments.