Sol-Gel Derived Li2O Doped BNT-BKT-BT Ceramics: Microstructure and Piezoelectric Properties
2012 ◽
Vol 512-515
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pp. 1355-1358
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Keyword(s):
Sol Gel
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The introduction of lithium ion into BNT-BKT-BT ceramics with sol-gel method allows the development of high-performance lead-free piezoelectric ceramics. Nanoscale precursor powders were synthesized through calcination of amorphous gels, and densified ceramics with single perovskite structure were prepared at a relatively low sintering temperature 1110 °C. Crystal grain growth was fully developed with the Li+ addition through scanning electron microscope observation. Enhanced electrical properties, piezoelectric constant d33~184 pC/N and planar electromechanical coupling factor kp~0.30, were obtained for the ceramics.
2014 ◽
Vol 602-603
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pp. 822-825
2011 ◽
Vol 287-290
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pp. 801-804
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2019 ◽
Vol 291
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pp. 167-173
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2006 ◽
Vol 301
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pp. 19-22
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2011 ◽
Vol 284-286
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pp. 1375-1380
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2014 ◽
Vol 887-888
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pp. 289-293
2021 ◽