TY  - JOUR
AU  - Ahmad, Basit
AU  - Khan, Akbar
PY  - 2026
DA  - 2026/04/02
TI  - Dielectric Properties of Lead-Free (1-x)SrTiO$_{3}$-xCaZrO$_3$ Solid-Solution Ceramics Prepared by Solid-State Sintering
JO  - Journal of Advanced Electronic Materials
T2  - Journal of Advanced Electronic Materials
JF  - Journal of Advanced Electronic Materials
VL  - 2
IS  - 2
SP  - 38
EP  - 43
DO  - 10.62762/JAEM.2026.626525
UR  - https://www.icck.org/article/abs/JAEM.2026.626525
KW  - SrTiO$_3$-CaZrO$_3$
KW  - solid solution
KW  - perovskite ceramics
KW  - dielectric constant
KW  - dielectric loss
KW  - dielectric relaxation
KW  - solid-state sintering
KW  - lead-free dielectrics
AB  - Lead-free (1-$x$)SrTiO$_3$-$x$CaZrO$_3$ solid-solution ceramics ($x$ = 0.05, 0.10, 0.15, 0.20) were synthesized via the conventional solid-state route to investigate structure-microstructure-dielectric relationships. X-ray diffraction patterns of the samples confirmed single-phase formation for all compositions, forming cubic perovskite structure (space group $Pm-3m$). Raman spectra were consistent with the perovskite lattice and local vibrational features, confirming perovskite structure. SEM micrographs revealed noticeable porosity for lower CaZrO$_3$ contents ($x$ = 0.05-0.15) and a more compact morphology at higher CaZrO$_3$ content, with a slight decrease in grain size as $x$ increases (average grain size $\approx 0.49 \, \mu\text{m}$). Dielectric measurements show pronounced frequency dispersion: the relative permittivity decreases with increasing frequency, consistent with dielectric relaxation behavior. Increasing CaZrO$_3$ content decreases the relative permittivity and decreases dielectric loss. The $x = 0.20$ sample showed reduced low-frequency loss, consistent with improved resistivity and densification. These results show that composition control in the SrTiO$_3$-CaZrO$_3$ system provides a practical route to tailor dielectric response in lead-free perovskite ceramics.
SN  - 3070-5649
PB  - Institute of Central Computation and Knowledge
LA  - English
ER  - 

@article{Ahmad2026Dielectric,
  author = {Basit Ahmad and Akbar Khan},
  title = {Dielectric Properties of Lead-Free (1-x)SrTiO\$\_{3}\$-xCaZrO\$\_3\$ Solid-Solution Ceramics Prepared by Solid-State Sintering},
  journal = {Journal of Advanced Electronic Materials},
  year = {2026},
  volume = {2},
  number = {2},
  pages = {38-43},
  doi = {10.62762/JAEM.2026.626525},
  url = {https://www.icck.org/article/abs/JAEM.2026.626525},
  abstract = {Lead-free (1-\$x\$)SrTiO\$\_3\$-\$x\$CaZrO\$\_3\$ solid-solution ceramics (\$x\$ = 0.05, 0.10, 0.15, 0.20) were synthesized via the conventional solid-state route to investigate structure-microstructure-dielectric relationships. X-ray diffraction patterns of the samples confirmed single-phase formation for all compositions, forming cubic perovskite structure (space group \$Pm-3m\$). Raman spectra were consistent with the perovskite lattice and local vibrational features, confirming perovskite structure. SEM micrographs revealed noticeable porosity for lower CaZrO\$\_3\$ contents (\$x\$ = 0.05-0.15) and a more compact morphology at higher CaZrO\$\_3\$ content, with a slight decrease in grain size as \$x\$ increases (average grain size \$\approx 0.49 \, \mu\text{m}\$). Dielectric measurements show pronounced frequency dispersion: the relative permittivity decreases with increasing frequency, consistent with dielectric relaxation behavior. Increasing CaZrO\$\_3\$ content decreases the relative permittivity and decreases dielectric loss. The \$x = 0.20\$ sample showed reduced low-frequency loss, consistent with improved resistivity and densification. These results show that composition control in the SrTiO\$\_3\$-CaZrO\$\_3\$ system provides a practical route to tailor dielectric response in lead-free perovskite ceramics.},
  keywords = {SrTiO\$\_3\$-CaZrO\$\_3\$, solid solution, perovskite ceramics, dielectric constant, dielectric loss, dielectric relaxation, solid-state sintering, lead-free dielectrics},
  issn = {3070-5649},
  publisher = {Institute of Central Computation and Knowledge}
}