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Phase transformation and electric properties of lead-free piezoceramics (Bi 0.5 Na 0.5 ) 1−x Ba x TiO 3 with x=0.05, 0.06, and 0.07(BNB5T, BNB6T and BNB7T) were investigated using dielectric, piezoelectric and ferroelectric measurements. Electric field induced strain measurement shows “W” shape bipolar strain characteristics for BNB5T with typical ferroelectric...
Barium titanate material systems are the basic microwave dielectrics attracting particular interests and subject to many researches due to lots of intriguing properties, such as, its high temperature stability, low loss, high dielectric constant etc. at microwave range. However, BaTi4O9 and Ba2Ti9O20 ceramics usually need very high sintering temperatures (∼1300°C and above) to achieve sufficient density...
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