Porous piezoelectric ceramics with 3-3-connectivity fabricated by impregnation of cellulose paper structures

Franziska Eichhorn, Alexander Stenzel, Bastian Weisenseel, Nahum Travitzky, Ken ichi Kakimoto, Peter Greil, Tobias Fey

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Porous piezoelectric ceramics with an interconnecting pore network (3-3 piezoceramic-air-composites) are a compromising material for sensor applications. Using a biomorphous approach with pre-pyrolysed cellulose fiber paper as template for the impregnation process leads to a novel porous piezoelectric ceramic with a fiber microstructure and benefits on easy shaping of complex structures and high porosity (∼90 vol%). The templates were impregnated by a non-aqueous lead zirconate titanate (PZT) slurry (solid fracture of 52.3%). After residual slurry and binder removal and cellulose/carbon burn-out, sintering was carried out at 1150 °C. Microstructure and composition analyses were done by µCT (“Skyscan 1172”, Bruker), SEM (FESEM, Helios NanoLab 600i FIB Workstation, FEI) and X-ray diffraction measurements (Kristalloflex D500, Siemens AG) evaluation. Geometric density decreased by 30% compared to dense PZT (as reference) a porosity increased from 2.4% up to 86%. The piezoelectric properties as d33, relative permittivity and d31 (measured by “Piezo-Meter PM 300″, Piezo Test) decreased up to 99%.

Original languageEnglish
Pages (from-to)158-161
Number of pages4
JournalMaterials Letters
Volume206
DOIs
Publication statusPublished - 1 Nov 2017

Fingerprint

Piezoelectric ceramics
piezoelectric ceramics
cellulose
Impregnation
Cellulose
Porosity
porosity
Microstructure
Fibers
templates
Binders
microstructure
Permittivity
Sintering
fibers
Carbon
Lead
workstations
X ray diffraction
Scanning electron microscopy

Keywords

  • Cellulose fiber paper
  • Hydrophones
  • Paper derived ceramic
  • Piezoelectric properties
  • Porous piezoceramic

ASJC Scopus subject areas

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

Cite this

Porous piezoelectric ceramics with 3-3-connectivity fabricated by impregnation of cellulose paper structures. / Eichhorn, Franziska; Stenzel, Alexander; Weisenseel, Bastian; Travitzky, Nahum; Kakimoto, Ken ichi; Greil, Peter; Fey, Tobias.

In: Materials Letters, Vol. 206, 01.11.2017, p. 158-161.

Research output: Contribution to journalArticle

Eichhorn, Franziska ; Stenzel, Alexander ; Weisenseel, Bastian ; Travitzky, Nahum ; Kakimoto, Ken ichi ; Greil, Peter ; Fey, Tobias. / Porous piezoelectric ceramics with 3-3-connectivity fabricated by impregnation of cellulose paper structures. In: Materials Letters. 2017 ; Vol. 206. pp. 158-161.
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