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The effects of sintering temperature on the properties of (Na0.5K0.5)NbO3-CaTiO3 based lead-free ceramics

Chang, Ren-Chuan and Chu, Sheng-Yuan and Lin, Yi-Fang and Hong, Cheng-Shong and Kao, Po-Ching and Lu, Chun-Hsien (2007) The effects of sintering temperature on the properties of (Na0.5K0.5)NbO3-CaTiO3 based lead-free ceramics. Sensors and Actuators A: Physical, 138 (2). 355 - 360.

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Lead-free (Na0.5K0.5)NbO3 ceramics doped with 0.5 mol% CaTiO3 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.

Item Type:Article
Uncontrolled Keywords:(Na, K)NbO3; CaTiO3; Sintering temperature; Perovskites; Piezoelectric
Subjects:Analytical Science > Nanotechnology for sensing and actuating
ID Code:4861
Deposited By:SPI
Deposited On:24 Apr 2009 17:52
Last Modified:24 Apr 2009 17:52

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