Freeze cast porous barium titanate for enhanced piezoelectric energy harvesting
@article{Roscow2018FreezeCP, title={Freeze cast porous barium titanate for enhanced piezoelectric energy harvesting}, author={James I. Roscow and Y. Zhang and Marcin J. Krasny and R. W. Lewis and J. Taylor and Christopher R. Bowen}, journal={Journal of Physics D: Applied Physics}, year={2018}, volume={51} }
Energy harvesting is an important developing technology for a new generation of self-powered sensor networks. This paper demonstrates the significant improvement in the piezoelectric energy harvesting performance of barium titanate by forming highly aligned porosity using freeze casting. Firstly, a finite element model demonstrating the effect of pore morphology and angle with respect to poling field on the poling behaviour of porous ferroelectrics was developed. A second model was then…
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References
SHOWING 1-10 OF 58 REFERENCES
Enhanced pyroelectric and piezoelectric properties of PZT with aligned porosity for energy harvesting applications
- Engineering, Materials Science
- 2019
This paper demonstrates the significant benefits of exploiting highly aligned porosity in piezoelectric and pyroelectric materials for improved energy harvesting performance. Porous lead zirconate…
Modelling and fabrication of porous sandwich layer barium titanate with improved piezoelectric energy harvesting figures of merit
- Materials Science
- 2017
Porous PZT Ceramics with Aligned Pore Channels for Energy Harvesting Applications
- Materials Science
- 2015
In this study, aligned porous lead zirconate titanate (PZT) ceramics with high pyroelectric figures-of-merit were successfully manufactured by freeze casting using water-based suspensions. The…
Manufacture and characterization of porous ferroelectrics for piezoelectric energy harvesting applications
- Materials Science
- 2016
ABSTRACT Porous ferroelectric materials have been evaluated for their piezoelectric energy harvesting capabilities. Macro-porous barium titanate (BaTiO3) ceramics were fabricated with a range of…
Piezoelectric Properties of PZT‐Based Ceramic with Highly Aligned Pores
- Materials Science
- 2008
Porous lead zirconate titanate–lead zinc niobate (PZT–PZN) piezoelectric ceramics with a high degree of pore alignment were fabricated using directional freeze casting of a ceramic/camphene slurry.…
Fabrication of Porous PZT–PZN Piezoelectric Ceramics With High Hydrostatic Figure of Merits Using Camphene‐Based Freeze Casting
- Materials Science
- 2007
Porous lead zirconate titanate–lead zinc niobate (PZT–PZN) piezoelectric ceramics with interconnected pore channels were fabricated using the camphene-based freeze-casting method. In this method,…
Porous piezoelectric ceramic hydrophone
- Materials Science, Physics
- 1999
The construction and evaluation of a hydrophone based on porous piezoelectric ceramics with high dhgh figure of merit (FOM) is described. It has been shown that, in order to improve the hydrophone…
Porous Piezoelectric Ceramics
- Materials Science
- 2010
Lead Zirconate Titanate (PZT) is the best performing, cost effective class of piezoelectric materials known to date (Kumamoto et al., 1991; Martin et al., 1993; Perez et al. 2005). Its success is…
Processing and piezoelectric properties of porous PZT ceramics
- Materials Science
- 2007