|
|||||
|
|
Synthesis, formation and characterization of ZnTiO3 ceramics |
|
| Authors: | Yee-Shin Chang Yen-Hwei Chang In-Gann Chen Guo-Ju Chen Yin-Lai Chai Te-Hua Fang Sean Wu |
| Affiliation: | a Department of Materials Science and Engineering, National Cheng Kung University, Tainan 701, Taiwan, ROC b Department of Material Science and Engineering, I-Shou University, Kaohsiung 840, Taiwan, ROC c Department of Resources Engineering, Dahan Institute of Technology, Hualien 971, Taiwan, ROC d Department of Mechanical Engineering, Southern Taiwan University of Technology, Tainan 710, Taiwan, ROC e Department of Electronics and Information Engineering, Tung-Fang Institute of Technology, Kaohsiung 821, Taiwan, ROC |
| Abstract: | Zinc titanate (ZnTiO3) powders of perovskite structure were synthesized by conventional solid state reaction using metal oxides. Powders of ZnO and TiO2 in a molar ratio of 1:1 were mixed in a ball mill and then heated at temperatures from 700 to 1000 °C for various time periods in air. The crystallization temperature of ZnTiO3 powder was  820 °C, activation energy for crystallization was 327.14 kJ/mol and for grain growth was 48.84 kJ/mol. A transition point was observed when the electrical resistivity was measured versus temperature. Like some ferroelectric materials, a PTCR behavior above the transition temperature was observed with Curie temperature of 5 °C. |
| Keywords: | A Powders: solid state reaction C Dielectric properties C Electrical properties D Perovskites |
| 本文献已被 ScienceDirect 等数据库收录！ | |