Influence of the Microstructure on the Fracture Behavior of Carbon Bonded Alumina

Abstract:

Carbon bonded alumina (Al₂O₃-C) in various compositions are developed for the production of open cell filters, which are used for melt metal filtration processes [. The Small Punch Test (SPT) is used to determine the mechanical properties of such materials. Previous investigations showed two different types of fracture behavior [2,, which can be distinguished by typical features of the load deflection curves of the SPT. This paper clarifies this behavior by examining the fracture surfaces using scanning electron microscopy (SEM).

• Periodical: Key Engineering Materials (Volumes 592-593)
• Pages: 279-282
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.592-593.279
• Online since: November 2013
• Authors: Stefan Soltysiak, Martin Abendroth, Meinhard Kuna, Steffen Dudczig
• Keywords: Carbon Bonded Alumina, Mechanical Property, Small Punch Test

References

[1] M. Emmel and C.G. Aneziris: Ceramics International Vol. 38 (2012), pp.5165-5172.

[2] S. Soltysiak et al.: Proceedings of the 2nd International Conference SSTT, Ostrava (2012).

[3] S. Soltysiak et al.: Proceedings of the 13th Biennial Worldwide Congress on Refractories, Victoria B.C. (2013), in press.

[4] CWA 15627: 2006(E) Part A: A Code of Practice for Small Punch Creep Testing (2006).

[5] Y. Klemm, H. Biermann and C.G. Aneziris: Ceramics International (2013), in press.