Topological interlocking and damage mechanisms in periodic Ti2AlC-Al building block composites

Journal article
(Original article)


Publication Details

Author(s): Stumpf M, Fan X, Biggemann J, Greil P, Fey T
Journal: Journal of the European Ceramic Society
Publication year: 2019
Volume: 39
Journal issue: 6
Pages range: 2003-2009
ISSN: 0955-2219
Language: English


Abstract

Ceramic Ti2AlC building blocks of 4 × 1.24 x 1.24 mm³ size were prepared by injection molding and assembled to brick-and-mortar structures with tetragonal, monoclinic and triclinic unit cells. The single building blocks were bonded with an Al-loaded polysiloxane adhesive, which was afterwards pyrolized. Afterwards the 3D-assemblies were infiltrated with an Al-melt to fabricate dense 0-3 ceramic-metal composites. The influence of the unit cell of the resulting Ti2AlC-Al composites was investigated regarding the mechanical properties and damage mechanisms in bending tests. The developed near-net shape fabrication process shows great potential to manufacture structured ceramic-metal composites with high toughness and complex shape. Due to their ductile behavior scaffold applications are possible. The calculated initial fracture toughness of monolithic Ti2AlC could be improved from 5.0 MPa m0.5 to 14.5 MPa m0.5 for the monoclinic assembly and 14.7 MPa m0.5 for the triclinic assembly, corresponding to an increase of 191 %.


FAU Authors / FAU Editors

Biggemann, Jonas
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Fan, Xiaomeng Dr.
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Fey, Tobias Dr.
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Greil, Peter Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Stumpf, Martin
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)


How to cite

APA:
Stumpf, M., Fan, X., Biggemann, J., Greil, P., & Fey, T. (2019). Topological interlocking and damage mechanisms in periodic Ti2AlC-Al building block composites. Journal of the European Ceramic Society, 39(6), 2003-2009. https://dx.doi.org/10.1016/j.jeurceramsoc.2019.01.047

MLA:
Stumpf, Martin, et al. "Topological interlocking and damage mechanisms in periodic Ti2AlC-Al building block composites." Journal of the European Ceramic Society 39.6 (2019): 2003-2009.

BibTeX: 

Last updated on 2019-20-02 at 08:53