Effect of MnO2 on the piezoelectric properties of (1 - X)(Na0.5K0.5)NbO3-xBaTiO3 ceramics

Cheol Woo Ahn, Hyun Cheol Song, Sahn Nahm, Seung Ho Park, Kenji Uchino, Shashank Priya, Hyeung Gyu Lee, Nam Kee Rang

Research output: Contribution to journalArticlepeer-review

102 Scopus citations


(Na0.5K0.5)NbO3 (NKN) and BaTiO 3 (BT) ceramics form a homogeneous solid solution. The relative density of the (1 - x)NKN-xBT solid solutions significantly decreased when x ≤ 0.07. Although the relative density of the 0.95NKN-0.05BT ceramic was very low, it had a high d33 value of 134pC/N. MnO2 was added to improve the piezoelectric properties of the 0.95NKN-0.05BT ceramics by enhancing their sinterability. The addition of MnO2 increased the density of the specimens, as well as improving the piezoelectric properties. The 0.9 mol% MnO2 added 0.95NKN-0.05BT ceramics showed the good piezoelectric properties of kp = 0.31, d33 = 194pC/N and ε3T/= 800.

Original languageEnglish (US)
Pages (from-to)L1361-L1364
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number42-45
StatePublished - 2005

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


Dive into the research topics of 'Effect of MnO2 on the piezoelectric properties of (1 - X)(Na0.5K0.5)NbO3-xBaTiO3 ceramics'. Together they form a unique fingerprint.

Cite this