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Journal of Materials Science

, Volume 44, Issue 7, pp 1757–1763 | Cite as

Single crystal growth in PMN-PT and PMN-PZT

  • Thomas RichterEmail author
  • Carsten Schuh
  • Ender Suvaci
  • Ralf Moos
Article

Abstract

Single crystal growth of lead-based piezoelectric ceramics Pb(Mg1/3Nb2/3)0.68Ti0.32O3 (PMN-32PT) and Pb(Mg1/3Nb2/3)0.42(Ti0.638Zr0.362)0.58O3 (PMN-37PT-21PZ) ceramics via templated grain growth (TGG) was investigated. (001)- and (111)-oriented BaTiO3 (BT) single crystals and (001)-oriented SrTiO3 (ST) single crystals (of approximately 2.5 × 2.5 × 1 mm) were utilized as seeds for the growth experiments. The piezoelectric single crystals were produced in a process that involves at first hot pressing of single crystal in cold isostatically pressed ceramics followed by subsequent sintering of the samples. Growth of (001)-oriented single crystals with BT seeds was observed in both PMN-32PT and PMN-37PT-21PZ matrices. The measured growth lengths were up to 140 and 65 μm, respectively. The grown (001)-oriented single crystals grown were rectangular. The measured growth lengths of the pyramidal-shaped (111) BT single crystals were up to 1 mm, which is much larger than the growth lengths of the (001) single crystals. Experiments on (001) ST-seeded single crystals were not successful. No single crystal growth was observed due to the dissolution of the ST single crystals in the PMN-PZT matrix. The differences were explained by defect-chemical considerations.

Keywords

BaTiO3 Sinter Time Growth Length Single Crystal Growth Subsequent Sinter 

Notes

Acknowledgement

This work was supported by the German Federal Ministry of Education and Research under BMBF grant number 03X4001A.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Thomas Richter
    • 1
    Email author
  • Carsten Schuh
    • 2
  • Ender Suvaci
    • 3
  • Ralf Moos
    • 4
  1. 1.PowertrainContinental AGRegensburgGermany
  2. 2.Ceramics DepartmentSiemens AG, Corporate TechnologyMunichGermany
  3. 3.Department of Materials Science and EngineeringAnadolu UniversityEskisehirTurkey
  4. 4.Functional Materials LaboratoryUniversity of BayreuthBayreuthGermany

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