TY - GEN
T1 - Effect of high concentration of an ideal donor dopant on the dielectric properties of potassium sodium niobate (KNN) lead-free piezoelectric ceramic
AU - Saari, Muhammad Qusyairie
AU - Mohamed, Julie Juliewatty
AU - Yusoff, Abdul Hafidz
AU - Ahmad, Zainal Arifin
AU - Bahanurddin, Nor Fatin Khairah
AU - Jumali, Mohammad Hafizuddin
AU - Jamil, Nor Huwaida
AU - Rahman, Mohd Fariz Ab
AU - Yuwono, Akhmad Herman
N1 - Publisher Copyright:
© 2024 Author(s).
PY - 2024/1/19
Y1 - 2024/1/19
N2 - Barium Carbonate (BaCO3) was selected as dopant to examine its effect to the Potassium Sodium Niobate piezoelectric ceramic properties. In this work, the concentration of Barium was doped until highest stoichiometry disorder for stoichiometry ratio of K0.5Na0.5Nb3 (KNN). The mixed powder of KNN were calcined at 850 ˚C for 6 hours. Then the clean calcined powder was uniaxially-pressed about 200 MPa to produce green body pellet for 1 mm in thickness using Hydraulic Hand Press. The concentration of BaCO3 as dopant were ranged from 0.00 and 0.25 until 0.45. A green body pellet was conventionally sintered at 1120 °C for 2h in air atmosphere. A phase analysis was done using X-Ray Diffraction. Barium as dopant improve the density of KNN. The size of cubical grain in microstructure images were reduced with increasing Ba content indicate the phase transformation. The relative permittivity (467.74 to 26.85) and tangent loss (0.36726 to 0.24552) were reported decreasing trends at frequency of 1 kHz.
AB - Barium Carbonate (BaCO3) was selected as dopant to examine its effect to the Potassium Sodium Niobate piezoelectric ceramic properties. In this work, the concentration of Barium was doped until highest stoichiometry disorder for stoichiometry ratio of K0.5Na0.5Nb3 (KNN). The mixed powder of KNN were calcined at 850 ˚C for 6 hours. Then the clean calcined powder was uniaxially-pressed about 200 MPa to produce green body pellet for 1 mm in thickness using Hydraulic Hand Press. The concentration of BaCO3 as dopant were ranged from 0.00 and 0.25 until 0.45. A green body pellet was conventionally sintered at 1120 °C for 2h in air atmosphere. A phase analysis was done using X-Ray Diffraction. Barium as dopant improve the density of KNN. The size of cubical grain in microstructure images were reduced with increasing Ba content indicate the phase transformation. The relative permittivity (467.74 to 26.85) and tangent loss (0.36726 to 0.24552) were reported decreasing trends at frequency of 1 kHz.
UR - http://www.scopus.com/inward/record.url?scp=85184597839&partnerID=8YFLogxK
U2 - 10.1063/5.0184352
DO - 10.1063/5.0184352
M3 - Conference contribution
AN - SCOPUS:85184597839
T3 - AIP Conference Proceedings
BT - AIP Conference Proceedings
A2 - Muhammad, Wan Nur Azrina Binti Wan
A2 - Selimin, Mohamad Ali bin
A2 - Abdullah, Hasan Zuhudi bin
A2 - Ibrahim, Siti Aida binti
A2 - Kamdi, Zakiah Binti
A2 - Badarulzaman, Nur Azam bin
A2 - Hussin, Rosniza Binti
PB - American Institute of Physics Inc.
T2 - Advanced Materials Characterization Techniques 2022, AMCT 2022
Y2 - 23 August 2022 through 24 August 2022
ER -