TY - GEN
T1 - Development of lead-free piezoceramic
AU - Chua, N.T.
AU - Wang, J.
AU - Ma, J.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2008
Y1 - 2008
N2 - Lead-based piezoceramic, such as lead zirconate titanate (PZT), is widely used because it has excellent piezoelectric properties near the morphotropic phase boundary (MPB). However, because of environmental issues associated with lead, the development of lead-free piezoceramics has attracted much attention recently. Solid solution of (K,Na)NbO3 (KNN), (K,Na)TaO3 (KNT) and LiNbO3 (LN) is one of the leading candidates. An MPB was formed at composition [(K0.5Na0.5)0.97Li0.03](Nb0.8Ta0.2)O3(KNN-KNT-L0.03N). Its piezoelectric response has been shown to be comparable to that of PZT system. However, complex texturing process is required to achieve the desired property. In this project, we investigated the KNN-KNT-LN system using conventional solid state reaction. The effects of increasing lithium, sintering process and the addition of CuO on the sample structure and electrical properties were studied. Remanent polarization of 28.39 μC/cm2 was observed for the 0.1 wt% CuO added ceramic, which was sintered under pressureless condition. © 2008 Trans Tech Publications lTD, Switzerland.
AB - Lead-based piezoceramic, such as lead zirconate titanate (PZT), is widely used because it has excellent piezoelectric properties near the morphotropic phase boundary (MPB). However, because of environmental issues associated with lead, the development of lead-free piezoceramics has attracted much attention recently. Solid solution of (K,Na)NbO3 (KNN), (K,Na)TaO3 (KNT) and LiNbO3 (LN) is one of the leading candidates. An MPB was formed at composition [(K0.5Na0.5)0.97Li0.03](Nb0.8Ta0.2)O3(KNN-KNT-L0.03N). Its piezoelectric response has been shown to be comparable to that of PZT system. However, complex texturing process is required to achieve the desired property. In this project, we investigated the KNN-KNT-LN system using conventional solid state reaction. The effects of increasing lithium, sintering process and the addition of CuO on the sample structure and electrical properties were studied. Remanent polarization of 28.39 μC/cm2 was observed for the 0.1 wt% CuO added ceramic, which was sintered under pressureless condition. © 2008 Trans Tech Publications lTD, Switzerland.
KW - Ferroelectric
KW - Lead-free
KW - Piezoelectric ceramic
UR - https://www.scopus.com/pages/publications/84955157359
UR - https://www.scopus.com/pages/publications/84955157359#tab=impact
U2 - 10.4028/www.scientific.net/SSP.136.63
DO - 10.4028/www.scientific.net/SSP.136.63
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9783908451501
T3 - Solid State Phenomena
SP - 63
EP - 66
BT - Advanced Structural and Functional Materials for Protection
A2 - Lau, William
A2 - Shang, Huai Min
A2 - Lee, Nam Sua
A2 - Ma, Jan
A2 - Tok, Alfred
PB - Trans Tech Publications Ltd.
T2 - International Conference on Materials for Advanced Technologies 2007 (ICMAT 2007)
Y2 - 1 July 2007 through 6 July 2007
ER -