Doping effects in Pb(Mg1/3Nb2/3)O3-PbTiO3 ceramics for high power transduction applications

Yun Han Chen, Senji Hirose, Dwight Viehland, Kenji Uchino

Research output: Contribution to journalConference article

2 Scopus citations

Abstract

Piezoelectric ceramics are potential high-power electro-acoustic sources, and have been studied for many years. However, when these devices are driven under high level vibration, the electromechanical characteristics depart significantly due to the loss and nonlinear behavior in terms of elastic and dielectric properties. In this paper, we present results concerning the development of modified Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) ceramics for high-power application. We have focused efforts on base PMN-PT compositions close to the morphotropic phase boundary. Different mono-doping have been studied to understand the doping effects on the properties of PMN-PT ceramics and, moreover, to improve the properties for the high-power application. Of all the substituents investigated in this study, Mn-doping was found the only one to improve the properties of PMN-PT significantly for high-power application by reducing the total loss (including mechanical loss as well as the dielectric loss), yet keeping the coupling factor constant. This work is supported by Office of Naval Research.

Original languageEnglish (US)
Pages (from-to)215-220
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume604
StatePublished - Dec 11 2000
EventMaterials for Smart Systems III - Boston, MA, USA
Duration: Nov 30 1999Dec 2 1999

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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