PZT nanocomposites reinforced by small amount of MgO

Faxin Li; Xiaoxing Yi; Zhiqi Cong; Daining Fang

doi:10.1142/S0217984907014024

PZT nanocomposites reinforced by small amount of MgO

Faxin Li, Xiaoxing Yi, Zhiqi Cong, Daining Fang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

To enhance the fracture toughness of brittle lead titanate zirconate (PZT) ceramics, PZT nanocomposites with 0.1, 0.5 and 1.0 vol% MgO were fabricated by means of a conventional industrial fabrication method. Through scanning electron microscopy (SEM) observation, indentation tests and D-E hysteresis measurement, the properties of PZT/MgO nanocomposites are characterized. With the increase of additional MgO, the fracture mode of PZT/MgO nanocomposites gradually changes from intergranular to transgranular fracture and the fracture toughness is fairly enhanced. The electric coercive fields of PZT/MgO nanocomposites decrease gradually while the piezoelectric constant d₃₃ hardly changes except that of PZT-1.0 vol% MgO which decreases about 13% compared with the monolithic PZT.

Original language	English
Pages (from-to)	1605-1610
Number of pages	6
Journal	Modern Physics Letters B
Volume	21
Issue number	24
DOIs	https://doi.org/10.1142/S0217984907014024
Publication status	Published - 20 Oct 2007
Externally published	Yes

Keywords

Fracture toughness
MgO
Nanocomposites
PZT

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10.1142/S0217984907014024

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title = "PZT nanocomposites reinforced by small amount of MgO",

abstract = "To enhance the fracture toughness of brittle lead titanate zirconate (PZT) ceramics, PZT nanocomposites with 0.1, 0.5 and 1.0 vol% MgO were fabricated by means of a conventional industrial fabrication method. Through scanning electron microscopy (SEM) observation, indentation tests and D-E hysteresis measurement, the properties of PZT/MgO nanocomposites are characterized. With the increase of additional MgO, the fracture mode of PZT/MgO nanocomposites gradually changes from intergranular to transgranular fracture and the fracture toughness is fairly enhanced. The electric coercive fields of PZT/MgO nanocomposites decrease gradually while the piezoelectric constant d33 hardly changes except that of PZT-1.0 vol% MgO which decreases about 13% compared with the monolithic PZT.",

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author = "Faxin Li and Xiaoxing Yi and Zhiqi Cong and Daining Fang",

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AU - Li, Faxin

AU - Yi, Xiaoxing

AU - Cong, Zhiqi

AU - Fang, Daining

PY - 2007/10/20

Y1 - 2007/10/20

N2 - To enhance the fracture toughness of brittle lead titanate zirconate (PZT) ceramics, PZT nanocomposites with 0.1, 0.5 and 1.0 vol% MgO were fabricated by means of a conventional industrial fabrication method. Through scanning electron microscopy (SEM) observation, indentation tests and D-E hysteresis measurement, the properties of PZT/MgO nanocomposites are characterized. With the increase of additional MgO, the fracture mode of PZT/MgO nanocomposites gradually changes from intergranular to transgranular fracture and the fracture toughness is fairly enhanced. The electric coercive fields of PZT/MgO nanocomposites decrease gradually while the piezoelectric constant d33 hardly changes except that of PZT-1.0 vol% MgO which decreases about 13% compared with the monolithic PZT.

AB - To enhance the fracture toughness of brittle lead titanate zirconate (PZT) ceramics, PZT nanocomposites with 0.1, 0.5 and 1.0 vol% MgO were fabricated by means of a conventional industrial fabrication method. Through scanning electron microscopy (SEM) observation, indentation tests and D-E hysteresis measurement, the properties of PZT/MgO nanocomposites are characterized. With the increase of additional MgO, the fracture mode of PZT/MgO nanocomposites gradually changes from intergranular to transgranular fracture and the fracture toughness is fairly enhanced. The electric coercive fields of PZT/MgO nanocomposites decrease gradually while the piezoelectric constant d33 hardly changes except that of PZT-1.0 vol% MgO which decreases about 13% compared with the monolithic PZT.

KW - Fracture toughness

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KW - Nanocomposites

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PZT nanocomposites reinforced by small amount of MgO

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Keywords

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