NDLI: Piezoelectric materials in the 21/sup st/ century

Content Provider	IEEE Xplore Digital Library
Author	Yamashita, Y.
Copyright Year	2000
Description	Author affiliation: Lab. of Power Supply Mater. & Devices, Toshiba Corp., Kawasaki, Japan (Yamashita, Y.)
Abstract	High-quality piezoelectric single crystals, such as Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/-PbTiO/sub 3/ (PZNT) and Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-PbTiO/sub 3/ (PMNT), have been investigated and, since their piezoelectric properties are greatly superior to those of PZT ceramics, they have been used for certain applications since the late 1990s. However, these materials have still some shortcomings, notably low Curie temperature Tc<180/spl deg/C and slower growth rate, which prevent them from replacing PZT ceramics in major application field. In this paper, some possible high Tc>200/spl deg/C single crystals are introduced. Single crystals of Pb(In/sub 1/2/Nb/sub 1/2/)O/sub 3/-PbTiO/sub 3/ (PINT) binary system and Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-Pb(Sc/sub 1/2/Nb/sub 1/2/)O/sub 3/-PbTiO/sub 3/ (PSMNT) ternary system have been synthesized and their electrical properties are reported. In addition, a novel guiding principle for discovering excellent piezoelectric materials, namely the presence of low-molecular-mass B-site ions which can enter the lead-perovskite structure.
Starting Page	139
Ending Page	144
File Size	759510
Page Count	6
File Format	PDF
ISBN	0780359402
ISSN	10994734
DOI	10.1109/ISAF.2000.941529
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-07-21
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Piezoelectric materials Ceramics Crystals Crystalline materials Lead Titanium compounds Piezoelectric devices Temperature Power supplies Laboratories
Content Type	Text
Resource Type	Article

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