Effect of Cr2O3 addition on the structure and electrical properties of Pb((Zn1/3Nb2/3)0.20(Zr0.50Ti0.50)0.80)O3 ceramics

He, Yu; Lu, Pengxian; Zhu, Mankang; Song, Xiaoyan; Tang, Jin; Wang, B.; Yan, Hui

doi:10.1016/j.mseb.2004.09.015

Cited by 65 publications

(47 citation statements)

References 28 publications

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“…For x>0.3 wt %, the sintering behavior of the ceramics is worsen, which cause an increase of tan δ. In addition, according to grain size effect, piezoelectric properties of ceramics are improved with increase of grain size [29]. The grain size gradually increases when x ranges from 0.15 wt% to 0.3 wt % as can be seen in Fig.…”

Section: Methodsmentioning

confidence: 77%

Effects of MnO2 addition on microstructure and electrical properties of (Bi0.5Na0.5) 0.94Ba0.06TiO3 ceramics

Wang

Quanlu

2007

J Electroceram

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In this letter, MnO 2 -doped (Bi 0.5 Na 0.5 ) 0.94 Ba 0.06-TiO 3 (BNBT-6) lead-free piezoelectric ceramics were synthesized by solid state reaction, and the microstructure and electrical properties of the ceramics were investigated. X-ray diffraction (XRD) reveals that all specimens take on single perovskite type structure, and the diffraction peaks shift to a large angle as the MnO 2 addition increases. Scanning electron microscopy shows that the grain sizes increases, and then decreases with increasing the MnO 2 content. The experiment results indicate that the electrical properties of ceramics are significantly influenced by the MnO 2 content, and the ceramics with homogeneous microstructure and excellent electrical properties are obtained with addition of 0.3 wt% MnO 2 and sintered at 1160°C. The piezoelectric constant (d 33 ), the electromechanical coupling factor (k p ), the dissipation factor (tan δ) and the dielectric constant (ɛ r ) reach 160 pC/N, 0.29, 0.026 and 879, respectively. These excellent properties indicate that the MnO 2 -doped BNBT-6 ceramics can be used for actuators.

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Section: Methodsmentioning

confidence: 77%

Effects of MnO2 addition on microstructure and electrical properties of (Bi0.5Na0.5) 0.94Ba0.06TiO3 ceramics

Wang

Quanlu

2007

J Electroceram

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“…34 Furthermore, it is found that the d 33 of BTWC ceramics varies with the same trend like that of grain size, as shown in Figure 1, which reflects the effect of grain size on piezoelectricity. 35 The BTWC2 (x ¼ 0.05) sample with the big schistose grains presents not only a high d 33 of 28 pC/N at 20 C, but also keep a value of 23 pC/N after annealing at 600 C, showing a high piezoelectricity and a good temperature stability.…”

Section: Resultsmentioning

confidence: 96%

Microstructures, dielectric, and piezoelectric properties of W/Cr co-doped Bi4Ti3O12 ceramics

Chen

Liang

Wang

et al. 2014

Journal of Applied Physics

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Effect of lattice occupation behavior of Li+ cations on microstructure and electrical properties of (Bi1/2Na1/2)TiO3-based lead-free piezoceramics W/Cr co-doped Bi 4 Ti 3 O 12 (BTWC) ceramics {Bi 4 Ti 3Àx W x O 12 þ x þ 0.2 wt. % Cr 2 O 3 (x ¼ 0-0.1)} with a high piezoelectricity were prepared by a conventional ceramic process, and effects of W/Cr dopant on the microstructures, dielectric, and piezoelectric properties of ceramics were explored. It is found that W 6þ modified the grain morphology and size of ceramics, promoting the forming of the regular schistose grains with a size of $10 lm in the ceramic at x ¼ 0.05. BTWC ceramics showed a continuous decrease in T c and a gradual increase in e r with the increasing W doping content. While the hard-doping of Cr 2 O 3 decreased, the TK e and tan d of ceramics available. All the ceramics keep the nature of first-order transition and displacive ferroelectrics. The d 33 and k p of BTWC ceramics were remarkably improved by the soft-doping of W 6þ . Excellent electrical properties (e.g., T c ¼ 638 C, e r ¼ 146, tan d ¼ 0.56%, TK e (500 C) ¼ 1.30 Â 10 À3 / C, s (500 C) ¼ 4.08 Â 10 À5 s, d 33 ¼ 28 pC/N, and k p ¼ 6.17%) have been achieved in Bi 4 Ti 2.95 W 0.05 O 12.05 þ 0.2 wt. % Cr 2 O 3 ceramic. Such a material can be a promising candidate for high-temperature piezoelectric applications. V C 2014 AIP Publishing LLC. [http://dx.

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“…The density of ceramics can be increased using small amount of Cr 2 O 3 . However, large content of Cr 2 O 3 will inhibit grain growth because of accumulation of Cr 3+ at the grain boundary, which results in decrease in the grain size (Hou et al, 2005;Takahashi, 1970).…”

Section: W/cr Modified Bi 4 Ti 3 O 12 Ceramicsmentioning

confidence: 99%

B-site Multi-element Doping Effect on Electrical Property of Bismuth Titanate Ceramics

Hou¹,

Kumar²

2011

Ferroelectrics - Physical Effects

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Effect of Cr2O3 addition on the structure and electrical properties of Pb((Zn1/3Nb2/3)0.20(Zr0.50Ti0.50)0.80)O3 ceramics

Cited by 65 publications

References 28 publications

Effects of MnO2 addition on microstructure and electrical properties of (Bi0.5Na0.5) 0.94Ba0.06TiO3 ceramics

Effects of MnO2 addition on microstructure and electrical properties of (Bi0.5Na0.5) 0.94Ba0.06TiO3 ceramics

Microstructures, dielectric, and piezoelectric properties of W/Cr co-doped Bi4Ti3O12 ceramics

B-site Multi-element Doping Effect on Electrical Property of Bismuth Titanate Ceramics

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