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- Title
Vertical morphotropic phase boundary in lead-free piezoelectric ceramics (K,Na,Li)NbO<sub>3</sub>-BaZrO<sub>3</sub>-(La,Na)TiO<sub>3</sub> system.
- Authors
Baba, Ryosuke; Karaki, Tomoaki; Fujii, Tadashi
- Abstract
A morphotropic phase boundary (MPB) with temperature-independent behavior, the so-called vertical MPB was investigated in lead-free (K,Na,Li)NbO3-BaZrO3-(La,Na)TiO3 ternary ceramic system. The specimens were synthesized by a conventional solid-state reaction method, and their crystal structures as well as their MPB were determined from X-ray diffraction patterns measured from room temperature to 300C. The vertical MPB composition was determined to be 0.9025(K0.45Na0.5Li0.05)NbO3-0.09BaZrO3-0.0075(La,Na)TiO3 and the Curie temperature was found to be about 195C. It was successfully confirmed that ceramic samples of this system could be sintered in a reducing atmosphere. For lead-free piezoceramic applications of multilayer actuators using Ni inner electrodes, the results obtained in this work have important practical implications.
- Publication
Journal of Advanced Dielectrics, 2016, Vol 6, Issue 2, p-1
- ISSN
2010-135X
- Publication type
Article
- DOI
10.1142/S2010135X16500089