Castling of phases in BaZrO3 doped (Na0.52K0.48)(Nb0.95Sb0.05)O3: Synergistic effect on electrical fatigue, ageing and thermal stability

Panda, H. S.; Rawal, Bhupender; Wathore, N. N.; Praveenkumar, B.

doi:10.1007/s10832-019-00179-2

Cited by 3 publications

(1 citation statement)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Overall, the changes over time in the humid-sintered samples appear to be in line with other studies of conventionally sintered LKNN-ceramics at the same storage conditions [46], while the coupling coefficients and mechanical quality factor change slightly more, and the change in kt is even positive for some samples. While such positive change with time previously has been observed [47], it might in our case be a combination of measurement inaccuracies and the effect of moisture in the sample during the measurement [46,48].…”

Section: B Dielectric Ferroelectric and Piezoelectric Propertiessupporting

confidence: 49%

Sodium Potassium Niobate-Based Piezoelectrics Sintered in Humid Air

Ferrero,

Pierchala,

Astafiev

et al. 2024

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

View full text Add to dashboard Cite

While the consequences of humidity during solidstate processing of sodium potassium niobate-based lead-free piezoelectric powders are well established, the effect of humidity at later fabrication steps are less known. This study assesses the effect of humidity on the sintering and functional properties of 0.06LiNbO3-0.94(K0.5Na0.5)NbO3. Samples sintered in highhumidity air display a higher density, lower dielectric losses and an increased mechanical quality factor. The observed properties persisted even after five months of storage with marginal reduction in the measured piezoelectric parameters. While the improvements shown with the high-humidity sintering method might be too small to justify investments in special atmosphere sintering, it more importantly indicates that no special equipment or atmosphere control is required to avoid adverse effects of humidity during sintering of sodium potassium niobate-based piezoceramics.

show abstract

Section: B Dielectric Ferroelectric and Piezoelectric Propertiessupporting

confidence: 49%