| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1499267 | Scripta Materialia | 2013 | 4 Pages |
Abstract
The formation of secondary phase in 4.0Â mol.% NiO-added Pb(Zn1/3Nb2/3)O3-PbZrO3-PbTiO3 (PZN-PZT) ceramics, prepared by a conventional solid-state reaction method, was investigated. The results reveal that the segregated secondary phase in perovskite matrix was (Zn,Ni)TiO3 with hexagonal ilmenite structure, not the normally predicted NiO or ZnO. A new formation mechanism related to the enrichment of ZnO, NiO and TiO2 at grain boundaries has been proposed. Due to its non-ferroelectric structure, the occurrence of (Zn,Ni)TiO3 greatly deteriorates the piezoelectric properties.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Mupeng Zheng, Yudong Hou, Haiyan Ge, Mankang Zhu, Hui Yan,