Data for: Enhanced thermal stability of piezoelectricity in lead-free (Ba,Ca)(Ti,Zr)O3 systems through tailoring the phase transition behavior

Dielectric permittivity data for two ceramics (x = 0.45 and y =0.80)
X-ray diffraction data for some ceramics (x = 0.20, 0.45, 0.80 and y = 0.20, 0.80, 1.00)
Hysterisis P-E loop data for x = 0.45 (20 ℃， 40 ℃， 60 ℃， 80℃) and y = 0.80 (20 ℃, 60 ℃, 100 ℃, 115 ℃) ceramics
Transmission electron microscope results for x= 0.45 (25 ℃, 70 ℃, 80 ℃) and y = 0.80 (25 ℃, 105 ℃, 115 ℃) ceramics