Realization of high-energy density polycrystalline piezoelectric ceramics

Rashed Adnan Islam, Shashank Priya

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

This letter reports a high energy density piezoelectric material in the system given as: Pb [(Zr0.52 Ti0.48) O3] 1-x [(Zn13 Nb23) O3] x +yMnC O3, where x=0.1 and y varies from 0.5 to 0.9 wt %. A piezoelectric material with high energy density is characterized by a high product of piezoelectric voltage constant (g) and piezoelectric strain constant (d). The condition for obtaining large magnitude of g constant was derived to be as ∫d∫ = εn, where ε is the permittivity of the material and n is constant having lower bound of 0.5. It was found that for all practical polycrystalline piezoelectric ceramic materials the magnitude of n lies in the range of 1.1-1.30 and as the magnitude of n decreases towards unity a giant enhancement in the magnitude of g was obtained. A two step sintering process was developed to optimize a polycrystalline ceramic composition with low magnitude of n. For the optimized composition the value of g33 and d33 was found to be 55.56× 10-3 m2 C and 291× 10-12 CN, respectively, yielding the magnitude product d33 · g33 as ∼16168× 10-15 m2 N which is significantly higher than the reported values in literature. The magnitude of n for this composition was calculated to be 1.151. This material is extremely promising for immediate applications in the sensing and energy harvesting.

Original languageEnglish (US)
Article number032903
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume88
Issue number3
DOIs
StatePublished - Jan 30 2006

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piezoelectric ceramics
flux density
products
unity
sintering
ceramics
permittivity
augmentation
electric potential

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "This letter reports a high energy density piezoelectric material in the system given as: Pb [(Zr0.52 Ti0.48) O3] 1-x [(Zn13 Nb23) O3] x +yMnC O3, where x=0.1 and y varies from 0.5 to 0.9 wt {\%}. A piezoelectric material with high energy density is characterized by a high product of piezoelectric voltage constant (g) and piezoelectric strain constant (d). The condition for obtaining large magnitude of g constant was derived to be as ∫d∫ = εn, where ε is the permittivity of the material and n is constant having lower bound of 0.5. It was found that for all practical polycrystalline piezoelectric ceramic materials the magnitude of n lies in the range of 1.1-1.30 and as the magnitude of n decreases towards unity a giant enhancement in the magnitude of g was obtained. A two step sintering process was developed to optimize a polycrystalline ceramic composition with low magnitude of n. For the optimized composition the value of g33 and d33 was found to be 55.56× 10-3 m2 C and 291× 10-12 CN, respectively, yielding the magnitude product d33 · g33 as ∼16168× 10-15 m2 N which is significantly higher than the reported values in literature. The magnitude of n for this composition was calculated to be 1.151. This material is extremely promising for immediate applications in the sensing and energy harvesting.",
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Realization of high-energy density polycrystalline piezoelectric ceramics. / Islam, Rashed Adnan; Priya, Shashank.

In: Applied Physics Letters, Vol. 88, No. 3, 032903, 30.01.2006, p. 1-3.

Research output: Contribution to journalArticle

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