Project D – Additive Manufacturing of Cellular Lead-Free Ceramics

The electromechanical properties of porous ferroelectrics are attractive for transduction applications, such as hydrophones, as the piezoelectric properties can be optimized in reticulate ceramic foams through the control of pore formation and cell size distribution. This allows for the optimization of properties for energy harvesting applications, making them lightweight and flexible. The required homogenous cellular structures can be produced either by sacrificial lattice templates or additive manufacturing, where, for example, a regular periodic structure (auxetic-like) consisting of various piezo-ceramic materials can be realized with a building block technique. A significant advantage of this approach is the ability to expressly design and optimize the 3D structure to enhance the electromechanical output, e.g., piezoelectric response for energy harvesting systems or strain enhancement for actuators.

The aim of this project is the investigation of lead-free cellular ceramics with additive manufacturing for novel lightweight and flexible (wearable) energy harvesting and sensor systems using auxetic or auxetic-like structures. Determination of influence of structural design parameters, e.g., polarization orientation, of the 3D-structure as well as microstructural properties, e.g., internal porosity, on resulting electromechanical properties will be in focus.

Projekte

Beteiligte Wissenschaftler

Publikationen

Khansur NH., Biggemann J., Stumpf M., Rieß K., Fey T., Webber KG.:
Temperature- and Stress-Dependent Electromechanical Response of Porous Pb(Zr,Ti)O3
In: Advanced Engineering Materials (2020)
ISSN: 1438-1656
DOI: 10.1002/adem.202000389
Myszka B., Schodder P., Leupold S., Barr M., Hurle K., Schüßler M., Demmert B., Biggemann J., Fey T., Boccaccini AR., Wolf S.:
Shape Matters: Crystal Morphology and Surface Topography Alter Bioactivity of Bioceramics in Simulated Body Fluid
In: Advanced Engineering Materials (2020)
ISSN: 1438-1656
DOI: 10.1002/adem.202000044
Biggemann J., Müller P., Köllner D., Simon S., Hoffmann P., Heik P., Lee JH., Fey T.:
Hierarchical Surface Texturing of Hydroxyapatite Ceramics: Influence on the Adhesive Bonding Strength of Polymeric Polycaprolactone
In: Journal of Functional Biomaterials 11 (2020), Art.Nr.: 73
ISSN: 2079-4983
DOI: 10.3390/jfb11040073
URL: https://www.mdpi.com/2079-4983/11/4/73
Biggemann J., Stumpf M., Fey T.:
Porous Alumina Ceramics with Multimodal Pore Size Distributions
In: Materials 14 (2021), S. 3294
ISSN: 1996-1944
DOI: 10.3390/ma14123294
Sugimoto H., Biggemann J., Fey T., Singh P., Khare D., Dubey AK., Kakimoto Ki.:
Lead-free piezoelectric (Ba,Ca)(Ti,Zr)O3 scaffolds for enhanced antibacterial property
In: Materials Letters 297 (2021), Art.Nr.: 129969
ISSN: 0167-577X
DOI: 10.1016/j.matlet.2021.129969