Low Temperature Sintering in 95(Na0.5K0.5)NbO3-5LiTaO3 Ceramics

Abstract:

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Na2O excess 95(Na0.5K0.5)NbO3-5LiTaO3 (NKN-5LT) ceramics were developed by conventional sintering process. Sintering temperature was lowered by adding Na2O as a sintering aid. Grain growth behaviors with Na2O addition were explained in terms of the effect of Na2O on interface reaction - controlled grain growth and the critical driving force. The electrical properties of NKN-5LT ceramics were investigated as a function of Na2O concentration. In the 1 mol% Na2O excess NKN-5LT samples sintered at 1000oC for 4h in air, electromechanical coupling factor (kP) and piezoelectric coefficient (d33) of NKN-5LT ceramics were found to reach the highest values of 0.43 and 190 pC/N, respectively.

Info:

Periodical:

Solid State Phenomena (Volumes 124-126)

Edited by:

Byung Tae Ahn, Hyeongtag Jeon, Bo Young Hur, Kibae Kim and Jong Wan Park

Pages:

735-738

DOI:

10.4028/www.scientific.net/SSP.124-126.735

Citation:

M. S. Kim et al., "Low Temperature Sintering in 95(Na0.5K0.5)NbO3-5LiTaO3 Ceramics", Solid State Phenomena, Vols. 124-126, pp. 735-738, 2007

Online since:

June 2007

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$35.00

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