Published March 17, 2014 | Version v1
Journal article Metadata-only

Polymorphic structure evolution and large piezoelectric response of lead-free (Ba,Ca)(Zr,Ti)O3 ceramics

Creators

  • 1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an 710049, Shaanxi (China)
  • 2. Key Laboratory for Macromolecular Science of Shaanxi Province, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi (China)

Description

The polymorphic structure evolution of (Ba,Ca)(Zr,Ti)O3 piezoelectric ceramics was investigated by analysis of the in situ X-ray diffraction and dielectric spectra. The results indicated that a confined orthorhombic (O) phase region induced by the approach of the rhombohedral (R) and tetragonal (T) phases existed in an extremely narrow temperature range of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 composition. The electric properties near the O–T phase boundaries of (Ba0.95Ca0.05)(Zr0.05Ti0.95)O3 and (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 were compared. The results suggested that the confined O phase region is an important factor that contributes to the extremely large piezoelectric response

Additional details

Identifiers

DOI
10.1063/1.4868414;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
104
Journal Issue
11
Journal Page Range
p. 112901-112901.5
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45078934
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM; CALCIUM; DIELECTRIC MATERIALS; ORTHORHOMBIC LATTICES; OXIDES; PIEZOELECTRICITY; TITANIUM; TRIGONAL LATTICES; X-RAY DIFFRACTION; ZIRCONIUM
Descriptors DEC
ALKALINE EARTH METALS; CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; ELECTRICITY; ELEMENTS; MATERIALS; METALS; OXYGEN COMPOUNDS; SCATTERING; TRANSITION ELEMENTS

Optional Information

Notes
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