Preparation and Mechanical Properties of Al2O3/TiCN Sandwich Nanocomposite Ceramic Tool Materials

Abstract:

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A model for designing sandwich nanocomposite ceramic tool materials with symmetrical distribution was presented. By adding nano-sized Al2O3 particles into the submicro-sized Al2O3 and TiCN, Al2O3/TiCN sandwich nanocomposite ceramic tool materials were fabricated by means of powder-laminating and hot-pressing technique. The experimental results showed that optimal mechanical properties were achieved for the composite with the addition of 35 vol.% TiCN particles in the middle layer and 45 vol.% TiCN particles in the outer layers, layer thickness ratio is 0.3, with the flexural strength reaching respectively 900MPa,fracture toughness and Vicker's hardness in the surface layers being 6.5MPa•m1/2 and 19.2GPa.

Info:

Periodical:

Advanced Materials Research (Volumes 97-101)

Edited by:

Zhengyi Jiang and Chunliang Zhang

Pages:

1126-1129

DOI:

10.4028/www.scientific.net/AMR.97-101.1126

Citation:

Y.Z. Li and J. Zhao, "Preparation and Mechanical Properties of Al2O3/TiCN Sandwich Nanocomposite Ceramic Tool Materials ", Advanced Materials Research, Vols. 97-101, pp. 1126-1129, 2010

Online since:

March 2010

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$35.00

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