Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 49, Issue 17, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/49/17/175301
Keywords
lead-free piezoelectrics; field-induced strain; ferroelectric
Categories
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology (MEST) [2011-0030058]
- Ministry of Education (MOE) National Research Foundation of Korea (NRF) through the Human Resource Training Project for Regional Innovation [2013H1B8A2032206]
- Abdul Wali Khan University, Mardan, KPK (Pakistan)
- National Research Foundation of Korea [2013H1B8A2032206] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
The dielectric and electromechanical properties of LiNbO3-modified (1-x) [0.91Na(0.5)Bi(0.5)TiO(3)-0.09Ba(0.70)Ca(0.30)TiO(3)]-xLiNbO(3) (abbreviated as (BiNa) TiO3-(BaCa) TiO3-LN) lead-free piezoceramics were investigated. The electrical properties revealed that the addition of LiNbO3 (LN) induces a phase transition from a non-ergodic relaxor to an ergodic relaxor in the (BiNa) TiO3-(BaCa) TiO3-LN system. A large electrostrain of similar to 0.418% with a normalized strain of similar to 690 pm V-1 at 6 kV mm(-1) was observed at the coexistence of the non-ergodic relaxor and ergodic relaxor phases for LN 0.020, where a field-assisted reversible phase transition between metastable ferroelectric and stable ergodic relaxor phases occurs. Subsequently, a gradual enhancement in the temperature stability of the dielectric constant was observed. At 3 mol.% LN, a nearly constant temperature and a frequency-invariant permittivity of er similar to 3300 over a broad temperature range of 147 degrees C-306 degrees C was observed along with small losses from room temperature up to 400 degrees C.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available