Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5438529 | Ceramics International | 2017 | 23 Pages |
Abstract
The crystal structure, ferroelectric, and electric-field-induced strain (EFIS) properties of Bi-based lead-free ferroelectric/relaxor composite materials are investigated. Bi1/2(Na0.82K0.18)1/2TiO3 as a ferroelectric material and 0.98Bi1/2(Na0.78K0.22)1/2TiO3â0.02LaFeO3 as a relaxor were synthesized via conventional ceramic processing routes while the relaxor (matrix phase) was prepared via high-energy ball milling (HEBM) after calcination. The average particle size was decreased via HEBM treatment. As a result, a high d33* value of over 600Â pm/V was obtained at 4Â kV/mm for 30-min HEBM-treated composites. This demonstrates that HEBM treatment is effective in enhancing the strain properties of leadâfree piezoelectric composite materials.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Hyoung-Su Han, Dae-Jun Heo, Thi Hinh Dinh, Chang-Heon Lee, Jin-Kyu Kang, Chang Won Ahn, Vu Diem Ngoc Tran, Jae-Shin Lee,