title: Microstructure and Mechanical Properties of Microwave Sintered ZrO2 Bioceramics with TiO2 Addition.
abstract: The microwave sintered zirconia ceramics with 0, 1, 3, and 5 wt% TiO2 addition at a low sintering temperature of 1300°C and a short holding time of 1 hour were investigated. Effect of contents of TiO2 addition on microstructure and mechanical properties of microwave sintered zirconia bioceramics was reported. In the sintered samples, the main phase is monoclinic zirconia (m-ZrO2) phase and minor phase is tetragonal zirconia (t-ZrO2) phase. The grain sizes increased with increasing the TiO2 contents under the sintering temperature of 1300°C. Although the TiO2 phase was not detected in the XRD pattern, Ti and O elements were detected in the EDS analysis. The presence of TiO2 effectively improved grain growth of the ZrO2 ceramics. The Vickers hardness was in the range of 125 to 300 Hv and increased with the increase of TiO2 contents. Sintering temperature dependence on the Vickers hardness was also investigated from 1150°C to 1300°C, showing the increase of Vickers hardness with the increase of the sintering temperature as well as TiO2 addition.
authors: Institute of Engineering Science and Technology, National Kaohsiung First University of Science and Technology, 1 University Road, Kaohsiung 824, Taiwan.
authors: Hsien-Nan
authors: 0000-0002-3079-0870
authors: HN
authors: Kuo
authors: Institute of Engineering Science and Technology, National Kaohsiung First University of Science and Technology, 1 University Road, Kaohsiung 824, Taiwan; Department of Electrical Engineering, National Kaohsiung University of Applied Sciences, 415 Chien-Kung Road, Kaohsiung 807, Taiwan; Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung 807, Taiwan.
authors: Jyh-Horng
authors: JH
authors: Chou
authors: Institute of Engineering Science and Technology, National Kaohsiung First University of Science and Technology, 1 University Road, Kaohsiung 824, Taiwan.
authors: Tung-Kuan
authors: 0000-0002-3581-574X
authors: TK
authors: Liu