In:
Hue University Journal of Science: Natural Science, Hue University, Vol. 130, No. 1B ( 2021-06-29), p. 13-20
Abstract:
In this study, Bi0.5(Na1–xKx)0.5SnO3 (BNKS) ceramics (x = 0, 0.1, 0.2, 0.3, and 0.4) were fabricated via ultrasound wave before milling. The time of ball milling decreased from 20 to 1 h. The X-ray diffraction patterns show that the BNKS has a single-phase structure. When the potassium content increases, the phase structure of the ceramics changes from rhombohedral to tetragonal. When sintered at 1100 °C and x = 0.2, the ceramics’ physical properties are the best with the mass density of 5.59 g/cm3, the electromechanical coupling constants kp of 0,31 and kt of 0.27, the remanent polarization of 11.9 µC/cm; the dielectric constant εr of 1131, and the highest dielectric constant emax of 4800.
Type of Medium:
Online Resource
ISSN:
2615-9678
,
1859-1388
DOI:
10.26459/hueunijns.v130i1B
DOI:
10.26459/hueunijns.v130i1B.6191
Language:
Unknown
Publisher:
Hue University
Publication Date:
2021