Table 1 Segregation of potassium, sodium, tantalum and niobium and the growth temperatures of K1−xNaxTa1−yNbyO3crystals.
From: Origin of giant piezoelectric effect in lead-free K1−xNaxTa1−yNbyO3 single crystals
Composition of the KNTN crystal | K/Na in the melt | Ta/Nb in the melt | ||
|---|---|---|---|---|
K0.30Na0.70Ta0.37Nb0.63O3 | 75:25 | 10:90 | ||
K0.36Na0.64Ta0.40Nb0.60O3 | 75:25 | 15:85 | ||
K0.39Na0.61Ta0.42Nb0.58O3 | 75:25 | 18:82 | ||
Segregation of K | Segregation of Na | Segregation of Ta | Segregation of Nb | Tg(°C) |
0.400 | 2.800 | 3.700 | 0.700 | 1193.0 |
0.480 | 2.560 | 2.667 | 0.706 | 1245.0 |
0.520 | 2.440 | 2.333 | 0.707 | 1277.5 |
