Advanced Biomaterials and Devices in Medicine
December 2015, Volume 2, Issue 2, pp 88–94
Paper-derived bioactive ceramics for complex shape bone implants
H. Lorenz, A. Bonet, A. Ayrikyan, P. Greil, N. Travitzky
Department of Materials Science and Engineering (Glass and Ceramics), University of Erlangen-Nuremberg, Erlangen, Germany
* Corresponding author: Nahum Travitzky, e-mail:
This paper reports the preparation and properties of paper-derived bioactive ceramic materials that allow easy fabrication of complex-shape implants for bone replacement and regeneration. Tricalcium phosphate (β-TCP), hydroxyapatite (HAP) and bioactive glass (BaG) were used as filler materials in the feedstock for the manufacturing of porous ceramic sheets by a novel preceramic paper processing method. The preceramic papers were sintered at temperatures ranging from 630 to 1250°C, depending on the filler material. The initial preceramic papers and the obtained ceramics were characterized in terms of microstructure and composition, and their porosity and density were measured and compared. The mechanical strength of the sintered specimens was measured using the ball-on-three-ball test and the three point bending test. The open porosity of the as-fabricated paper-derived biomaterials was in the range of 37–64%, their strength varied between approximately 7.6 and 33.1 MPa, while their Young’s modulus ranged between 0.33 and 1.53 GPa.
Keywords: paper-derived bioactive ceramic, complex-shape implants