The effects of sintering temperature on the properties of (Na0.5K0.5)NbO3–CaTiO3 based lead-free ceramics
| Autor: | Ren Chuan Chang, Yi Fang Lin, Chun Hsien Lu, Po Ching Kao, Cheng Shong Hong, Sheng-Yuan Chu |
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| Rok vydání: | 2007 |
| Předmět: |
Diffraction
Materials science Scanning electron microscope Doping Metals and Alloys Mineralogy Sintering Dielectric Condensed Matter Physics Ferroelectricity Piezoelectricity Surfaces Coatings and Films Electronic Optical and Magnetic Materials visual_art visual_art.visual_art_medium Ceramic Electrical and Electronic Engineering Composite material Instrumentation |
| Zdroj: | Sensors and Actuators A: Physical. 138:355-360 |
| ISSN: | 0924-4247 |
| DOI: | 10.1016/j.sna.2007.05.020 |
| Popis: | Lead-free (Na 0.5 K 0.5 )NbO 3 ceramics doped with 0.5 mol% CaTiO 3 have been prepared by the conventional mixed-oxide method with sintering temperature at 1040–1120 °C in this paper. The samples are characterized by X-ray diffraction analysis and scanning electron microscopy. The dielectric, piezoelectric and ferroelectric properties are also investigated. The results present that the increase of the sintering temperature is very effective in improving the density and electric properties. However, the properties of the samples would be deteriorated as they are sintered over the optimum temperature. The NKN-0.5%CT ceramics show excellent properties with sintering temperature at 1100 °C. |
| Databáze: | OpenAIRE |
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