The development of Zirconia and Copper toughened Alumina ceramic insert

Sabuan, N.A. and Zolkafli, N. and Mebrahitom, A. and Azhari, A. and Mamat, O. (2018) The development of Zirconia and Copper toughened Alumina ceramic insert. IOP Conference Series: Materials Science and Engineering, 342 (1).

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Ceramic cutting tools have been utilized in industry for over a century for its productivity and efficiency in machine tools and cutting tool material. However, due to the brittleness property the application has been limited. In order to manufacture high strength ceramic cutting tools, there is a need for suitable reinforcement to improve its toughness. In this case, copper (Cu) and zirconia (ZrO2) powders were added to investigate the hardness and physical properties of the developed composite insert. A uniaxial pre-forming process of the mix powder was done prior to densification by sintering at 1000 and 1300°C. The effect of the composition of the reinforcement on the hardness, density, shrinkage and microstructure of the inserts was investigated. It was found that an optimum density of 3.26 and hardness 1385HV was obtained for composite of 10wt zirconia and 10wt copper at temperature 1000 °C. © Published under licence by IOP Publishing Ltd.

Item Type:Article
Impact Factor:cited By 0; Conference of International Conference on Innovative Technology, Engineering and Sciences 2018, iCITES 2018 ; Conference Date: 1 March 2018 Through 2 March 2018; Conference Code:135946
Uncontrolled Keywords:Alumina; Aluminum oxide; Copper; Copper compounds; Cutting tools; Fracture mechanics; Hardness; Machine tools; Reinforcement; Sintering; Zirconia, Alumina ceramic; High strength; Optimum density; Tool materials, Ceramic cutting tools
Departments / MOR / COE:Research Institutes > Institute for Contaminant Management
ID Code:20673
Deposited By: Ahmad Suhairi
Deposited On:26 Jul 2018 02:49
Last Modified:11 Oct 2018 02:24

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