The Effect of Copper Oxide on the Mechanical Properties of Y-TZP Ceramics. (June 2020)

• Record Type: Journal Article
• Authors: Sivakumar, S.; Teow, H.L.; Satesh, N.; Hosseini, M.F.; Se Yong, E.N.
• Is Part Of: Journal of physics. Volume 1532(2020)
• Publication Date: 2020-06
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1532/1/012002
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Small amount of Copper Oxide powder between 0.05 to 1 wt% were added into commercially available Y-TZP and its effect were investigated. The compacted samples underwent pressureless sintering in air at temperature between 1250°C to 1500°C. The mechanical properties of the samples' such as bulk density, its Vickers hardness, and the samples' fracture toughness were then evaluated. It was found that compared to Y-TZP without CuO content, doping ≥ 0.3 wt% of CuO was beneficial in enhancing Y-TZP's mechanical properties by improving its densification rate, improving the matrix stiffness and also Vickers hardness when sintered at low temperatures such as below 1350°C. In addition, it also found that with the exception of undoped Y-TZP samples, there were enhancement of fracture toughness (KIC ) of all samples when sintered below 1350°C.