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Ferroelectrics Volume 409, 2010 - Issue 1
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SECTION J2: PIEZOELECTRICS AND APPLICATIONS

Sinterability and Piezoelectric Properties of PMNZT Ceramics with Copper Oxide

Min-Soo Kim Advanced Materials & Application Research Laboratory, Korea Electrotechnology Research Institute, Changwon, Kyungnam, 641-120, Korea
,
Hyeon-Kyu Joo Advanced Materials & Application Research Laboratory, Korea Electrotechnology Research Institute, Changwon, Kyungnam, 641-120, Korea
,
Dae-Su Lee Advanced Materials & Application Research Laboratory, Korea Electrotechnology Research Institute, Changwon, Kyungnam, 641-120, Korea
,
Soon-Jong Jeong Advanced Materials & Application Research Laboratory, Korea Electrotechnology Research Institute, Changwon, Kyungnam, 641-120, Korea
,
In-Sung Kim Advanced Materials & Application Research Laboratory, Korea Electrotechnology Research Institute, Changwon, Kyungnam, 641-120, Korea
&
Jae-Sung Song Advanced Materials & Application Research Laboratory, Korea Electrotechnology Research Institute, Changwon, Kyungnam, 641-120, Korea
Pages 66-71 | Received 23 Aug 2009, Accepted 01 Oct 2009, Published online: 01 Dec 2010
 
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Abstract

The sinterability and piezoelectric properties of the Pb(Mg0.15Nb0.3Zr0.2Ti0.35)O3 ceramics with CuO sintering aid were investigated. The samples were synthesized with the conventional sintering method. The x-ray diffraction patterns indicated that all the samples formed a single-phase perovskite structure. The CuO additions improved the sinterability of the Pb(Mg0.15Nb0.3Zr0.2Ti0.35)O3 ceramics and increased the density and grain size of the samples. Excellent piezoelectric and electromechanical responses of d33 = 657 pC/N and kP = 0.72 were obtained from the high-density samples with 0.2 wt% CuO that were sintered at 1000 °C for 4 h.

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