Table 3 The TO-T, TC, dielectric constant (ε r) and dielectric loss (tanδ) values of the KNTN single crystal at a frequency of 1 kHz.

From: Origin of giant piezoelectric effect in lead-free K1−xNaxTa1−yNbyO3 single crystals

Crystal

TO-T(°C)

TC(oC)

εr at Troom

tanδ at Troom (%)

K0.30Na0.70Ta0.37Nb0.63O3

84

228

369

0.7

K0.36Na0.64Ta0.40Nb0.60O3

58

209

609

0.7

K0.39Na0.61Ta0.42Nb0.58O3

39

161

670

0.6

K0.334Na0.666NbO326

174

395

68

0.4

K0.5Na0.5NbO3 29

192

410

1015

1

Back to article page