The enhancing performance of (Ba{sub 0.85}Ca{sub 0.15}Ti{sub 0.90}Zr{sub 0.10})O{sub 3} ceramics by tuning anatase–rutile phase structure

Journal Article · Fri Apr 15 00:00:00 EDT 2016 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2015.12.022· OSTI ID:22581520

Chao, Xiaolian ^[1]; Wang, Juanjuan ^[2]; Wang, Zhongming; Zhang, Ting ^[1]; Yang, Zupei ^[1]; Li, Guangzhao ^[2]

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1. Key Laboratory for Macromolecular Science of Shaanxi Province, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an, 710062, Shaanxi (China)
2. School of Materials Science and Engineering, Xi’an University of Technology, Xi’an710048, Shaanxi (China)

Graphical abstract: Titanium dioxide (TiO{sub 2}) with different phase structure had interesting influence on the crystal structure, microstructure, the sintering temperature and electrical properties. - Highlights: • BCZT ceramics were prepared using either anatase or rutile structures as Ti source. • Orthorhombic and tetragonal mixture structure was exhibited by adjusting Ti source. • The optimal properties were observed in BCZT ceramics with rutile titanium dioxide. - Abstract: To research effect of raw materials TiO{sub 2} with the phase structures on the crystal structure, microstructure and electrical properties of lead-free (Ba{sub 0.85}Ca{sub 0.15})(Ti{sub 0.90}Zr{sub 0.10})O{sub 3} (BCZT) ceramics, BCZT ceramics using either anatase or rutile as Ti source were synthesized by solid-state reaction. Titanium dioxide (TiO{sub 2}) with anatase/rutile phase structures had interesting influence on the crystal structure, microstructure and the sintering temperature by the X-ray diffraction and SEM, which also played an important role in improved electrical properties. The BCZT ceramics with rutile titanium dioxide demonstrated optimal piezoelectric and dielectric properties: d{sub 33} = 590 pC/N, k{sub p} = 0.46, ε{sub r} = 2810, tanδ = 0.014 and T{sub c} = 91 °C, which was obviously superior to BCZT ceramics with anatase titanium dioxide.

• OSTI ID: 22581520
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 76; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
CALCIUM OXIDES
CERAMICS
CRYSTALS
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
MICROSTRUCTURE
ORTHORHOMBIC LATTICES
PIEZOELECTRICITY
RAW MATERIALS
RUTILE
SCANNING ELECTRON MICROSCOPY
SINTERING
TITANIUM OXIDES
TRIGONAL LATTICES
X-RAY DIFFRACTION
ZIRCONIUM OXIDES