Affiliation:
1. Department of Intelligent Systems Design Engineering, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan
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 300[Formula: see text]C. 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 195[Formula: see text]C. 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.
Publisher
World Scientific Pub Co Pte Lt
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Ceramics and Composites,Electronic, Optical and Magnetic Materials
Cited by
10 articles.
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