Paper Title:
Design of Ceramic Composite Based on the Impact Resistance and its Machining Application
  Abstract

An optimum model for the compositional design of advanced ceramic composites is built based on the impact resistance. The relative impact modulus IM0 is defined as an index for the characterization of impact resistance of brittle ceramics. Computer aided optimum technique is used to get the optimum compositions of the material. Results show that the material can be expected to have the highest impact resistance which is nearly 86% higher than that of the pure alumina when the volume fraction of Al2O3, SiC and Ti(C,N) is 72.3%, 14.8% and 12.9%, respectively. An advanced SiC/Ti(C,N)/Al2O3 ceramic composite is then fabricated according to the optimum results. When used as cutting tools, its impact fracture resistance is approximately 71%-76% higher than that of the pure alumina ceramic in the machining of hardened carbon steel. The increment coincides well with that predicted directly from the optimum model. It suggests that the method is feasible in the design and fabrication of ceramic composites especially for machining application.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
2487-2489
DOI
10.4028/www.scientific.net/KEM.336-338.2487
Citation
C. H. Xu, H.Y. Wang, "Design of Ceramic Composite Based on the Impact Resistance and its Machining Application", Key Engineering Materials, Vols. 336-338, pp. 2487-2489, 2007
Online since
April 2007
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Price
$32.00
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