Electrostrictive coefficients of pb(Mg1/3Nb2/3)O3 ceramics

Jun Kuwata, Kenji Uchino, Shoichiro Nomura

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The electrostrictive coefficients Q33 and Q13 of Pb(Mg1/3Nb2/3)O3 ceramics have been precisely determined over a wide temperature range from −110°C to 100°C, using three different methods: strain gauge, piezoelectric resonance and interferometric techniques. A quadratic relation between induced strain and electric polarization holds even in the ferroelectric phase, as well as in the paraelectric phase. The electrostrictive coefficients are nearly temperature-independent with values of Q33= 2.3(±0.2)×10−2 m4C−2 and Q13= −0.64(±0.05)×10−2 m4C−2. The field-induced piezoelectric coefficients d33 and d31 were also measured at room temperature as a function of dc bias field. The values of d333 and d313 are proportional to the induced electric polarization. The electrostrictive coefficients calculated from the slopes are in good agreement with those obtained by the strain-gauge method.

Original languageEnglish (US)
Pages (from-to)2099-2103
Number of pages5
JournalJapanese Journal of Applied Physics
Issue number11
StatePublished - Nov 1980

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


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