Perovskite (Na0.5K0.5)1−x(LiSb)xNb1−xO3 lead-free piezoceramics

Applied Physics Letters - Tập 88 Số 21 - 2006
Guo‐Zhong Zang1, Jinfeng Wang1, Hong-Cun Chen1, Wen-bin Su1, Chunming Wang1, Peng Qi1, Bao-Quan Ming1, Juan Du1, Li-mei Zheng1, Shujun Zhang2, Thomas R. Shrout2
1Shandong University School of Physics and Microelectronics, State Key laboratory of Crystal Materials, , Jinan 250100, People’s Republic of China
2The Pennsylvania State University Materials Research Institute, , University Park, Pennsylvania 16802

Tóm tắt

Lead-free potassium sodium niobate piezoelectric ceramics substituted with lithium and antimony (Na0.5K0.5)1−x(LiSb)xNb1−xO3 have been synthesized by conventional solid state sintering method. Compositionally engineered around the orthorhombic-tetragonal polymorphic phase transition, the dielectric and piezoelectric properties were further enhanced with the addition of lithium and antimony substituted into the perovskite structure. The combined effects of lithium and antimony additions resulted in a downward shift in the orthorhombic-tetragonal (TO-T) without significantly reducing TC. The dielectric, piezoelectric, and electromechanical properties were found to be ε∕ε0>1300, d33>260pC∕N, and kp>50%, while maintaining low dielectric loss. The enhanced polarizability associated with the polymorphic TO-T transition and high TC transition (∼390°C) should provide a wide range of temperature operation.

Từ khóa


Tài liệu tham khảo

1955, J. Res. Natl. Bur. Stand., 55, 239, 10.6028/jres.055.028

2005, J. Eur. Ceram. Soc., 25, 2693, 10.1016/j.jeurceramsoc.2005.03.125

2004, J. Eur. Ceram. Soc., 24, 1693, 10.1016/S0955-2219(03)00475-8

1999, Ferroelectrics, 230, 87, 10.1080/00150199908214902

1997, Jpn. J. Appl. Phys., Part 1, 36, 6055, 10.1143/JJAP.36.6055

1998, Appl. Phys. Lett., 73, 3683, 10.1063/1.122862

1959, J. Am. Ceram. Soc., 42, 438, 10.1111/j.1151-2916.1959.tb12971.x

2005, J. Am. Ceram. Soc., 88, 1190, 10.1111/j.1551-2916.2005.00229.x

2004, Jpn. J. Appl. Phys., Part 1, 43, 7556, 10.1143/JJAP.43.7556

2005, Phys. Status Solidi A, 202, R89, 10.1002/pssa.200510034

2004, Nature (London), 42, 84, 10.1038/nature03028

2004, Appl. Phys. Lett., 85, 4121, 10.1063/1.1813636

2005, Mater. Lett., 59, 241, 10.1016/j.matlet.2004.07.057

2005, Appl. Phys. Lett., 87, 182905, 10.1063/1.2123387

2005, J. Appl. Phys., 97, 114105, 10.1063/1.1926396

1962, J. Am. Ceram. Soc., 45, 209, 10.1111/j.1151-2916.1962.tb11127.x

1958, J. Am. Ceram. Soc., 41, 494, 10.1111/j.1151-2916.1958.tb12903.x

1967, J. Am. Ceram. Soc., 50, 329, 10.1111/j.1151-2916.1967.tb15121.x

1968, J. Appl. Phys., 39, 4749, 10.1063/1.1655833

1971, Piezoelectric Ceramics

1959, Phys. Rev., 114, 63, 10.1103/PhysRev.114.63

1987, IEEE Standard on Piezoelectricity

Thông tin
Thông tin xuất bản

Applied Physics Letters

Tập 88 Số 21

Thông tin tác giả