Crack Growth Resistance of Carbide Reinforced Composite Ceramics Based on Alumina

Magdalena Szutkowska; Marek Boniecki

doi:10.4028/www.scientific.net/KEM.409.231

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 409Crack Growth Resistance of Carbide Reinforced...

Crack Growth Resistance of Carbide Reinforced Composite Ceramics Based on Alumina

Abstract:

The relationship of KR versus crack length c (R curve) for Al2O3-30wt.% Ti(C,N).and for comparison alumina ceramics has been examined. The R-curve has been evaluated using pronounced long-crack formed during the three point bending (3PB) of the double edge notched beam. A combination of in situ microscopic crack growth observation and mechanical testing enabled measurement of crack growth resistance curves. The special device consisting of light microscope coupled with CCD camera, was fitted to Zwick 1446 testing machine. These observations reveal the existence of flat R-curve for Al2O3-30wt.% Ti(CN) and increasing R-curve for pure alumina. A study of slow-crack-growth (SCG) in tested materials was carried. The load-relaxation technique was used for observation at slow-crack-growth. The crack length was evaluated by linear-elastic analysis from the compliance of single-edge-notched specimen in three-point bending test. Parameters of stable crack growth n and logA, work-of fracture (WOF), stress intensity factor at the moment of crack initiation KI0 and maximum values of stress intensity factor KImax were determined. Mechanism of grain bridging responsible for occurrence of R-curve was observed by SEM and TEM.

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Periodical:

Key Engineering Materials (Volume 409)

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231-236

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https://doi.org/10.4028/www.scientific.net/KEM.409.231

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Online since:

March 2009

Authors:

Magdalena Szutkowska, Marek Boniecki

Keywords:

Alumina Ceramic, Fracture Toughness, R-Curve, Slow Crack Growth

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References

[1] J. Dusza and M. Steen: Brittle matrix composites: microstructure, room and high-temperature properties. The Proccedings of the International Conference DF PM'99 (1999), p.277.

Google Scholar

[2] R. Riedel: Handbook of ceramic hard materials, 1, 2 Wiley-Vch, (2000).

Google Scholar

[3] E.D. Whitney. Ceramic cutting tools. Materials, Development, and Performance. Noyes Publications. Park Ridge, New Jersey, U.S.A. (1994).

Google Scholar

[4] M.C. Albuquerque and J.A. Rodrigues: Mat. Res. Vol. 9 no 4. (2006).

Google Scholar

[5] N.P. Cheremisinoff: Handbook of Ceramics and Composites Vol. 1 (1990), p.279.

Google Scholar

[6] E. Lutz, N. Claussen and M. V Swain: J. Am. Ceram. Soc. Vol. 74(1) (1991), p.11.

Google Scholar

[7] D. Munz and T. Fett: Ceramics, Springer-Verlag, Berlin Heilderberg (1999).

Google Scholar

[8] T. Fett and D. Muntz: J. Am. Ceram. Soc. Vol. 75(4) (1999), p.958.

Google Scholar

[9] T. Fett: Eng. Fract. Mech. Vol. 40(5) (1994), p.1194.

Google Scholar

[10] J. Gong, Z. Zhao, H. Miao and Z. Guan: Scripta Mater. Vol. 43 (2000), p.27.

Google Scholar