Journal
JOURNAL OF ADVANCED DIELECTRICS
Volume 6, Issue 2, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S2010135X16500132
Keywords
(K,Na)NbO3; BaTiO3; piezoelectric ceramics; spark plasma sintering
Categories
Funding
- National Nature Science Foundation of China [51572143, 51302144, 51332002]
- Specialized Research Fund for the Doctoral Program of Higher Education [20130002120031]
- Tsinghua University Initiative Scientific Research Program [20131089230]
Ask authors/readers for more resources
(K,Na)NbO3 (KNN)-based lead-free piezoceramics have been the spotlight in search for practically viable candidates to replace the hazardous but dominating lead-containing counterparts. In this work, BaTiO3 (BT) modified KNN ceramics were fabricated by spark plasma sintering (SPS) and the influence of BT content as well as sintering temperature on the phase structure, microstructure, and electrical properties were investigated. It was found that the 0.96(Na0.5K0.5)NbO3-0.04BaTiO(3) (BT4) ceramics sintered at 1000 degrees C have the optimal performance. Additionally, in-depth analysis of the electrical hysteresis revealed that the internal bias field originating from accumulation of space charges at grain boundaries is responsible for the asymmetry in the hysteresis loops.
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
Share Paper
