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JOURNAL DETAIL
Study of Crack Growth Behavior in Commercially As-Received Lead-Zirconate-Titanate
Paper Type  |
Opinion |
Title |
Study of Crack Growth Behavior in Commercially As-Received Lead-Zirconate-Titanate |
Author |
Sukanda Jiansirisomboon |
Email |
sukanda_jian@hotmail.com |
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Abstract: The growth behavior of cracks in both poled and unpoled Lead-Zirconate-Titanate (PZT) piezoelectric ceramics was studied by using indentation technique. The values of Vickers hardness (Hv) and fracture hardness (KIC) of this material were measured. In the poled samples, the radial crack length was found to be dependent on the orientation of ferroelectric dipole moments with respect to the poling direction, which affected the KIC value. Thus KIC shows significant anisotropy in poled samples. The crack profiles produced by the indentaions both on the indented surface and beneath the indentation were studied in both poled and unpoled samples in order to observe the crack behavior. The physically deformed zone below the indentation presented anisotropy in the poled sample, this could possible explain the anisotropy observed in KIC value.
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Start & End Page |
21 - 29 |
Received Date |
2002-02-27 |
Revised Date |
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Accepted Date |
2002-04-23 |
Full Text |
Download |
Keyword |
mechanical properties, fracture toughness, hardness, Vickers indentation, PZT |
Volume |
Vol.29 No.1 (APRIL 2002) |
DOI |
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SDGs |
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