Topic
Lead zirconate titanate
About: Lead zirconate titanate is a research topic. Over the lifetime, 7141 publications have been published within this topic receiving 150878 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, the aging characteristics of an acetic acid/methanol solvent-based lead zirconate titanate (PZT) precursor solution, prepared by the Inverted Mixing Order (IMO) process, have been studied for an extended period of time.
Abstract: The “aging” characteristics of an acetic acid/methanol solvent-based lead zirconate titanate (PZT) precursor solution, prepared by the Inverted Mixing Order (IMO) process, have been studied for an extended period of time. The changes in film properties were characterized using optical microscopy, optical scattering, and ferroelectric testing. Films generated from the IMO process exhibit an increase in thickness as a function of solution age due to chemical “aging” (esterification) of the precursor solution. This increased thickness results in a decrease in the microstructural uniformity, which affects the electrical and optical properties. In order to understand and eventually control this phenomenon, we have quantified the “aging” of this solution using a variety of analytical methods, including 1H NMR spectroscopy, pH measurements, and Fourier transform infrared (FTIR) spectroscopy. It is of note that we have discovered a method that circumvents this “aging” problem by removal of the volatile material, forming an IMO powder which can be redissolved to produce high quality PZT thin films whenever desired.
41 citations
TL;DR: In this paper, an algorithm to detect damage size and shape using a lead zirconate titanate (PZT) transducer array for a plate structure is developed. During the process of detection, the pr...
Abstract: An algorithm to detect damage size and shape using a lead zirconate titanate (PZT) transducer array for a plate structure is developed in this paper. During the process of detection, the pr...
41 citations
TL;DR: In this paper, a new lost mold rapid prototyping method which combines selective laser sintering (SLS) and gelcasting techniques for fabricating piezoelectric ceramics was presented.
Abstract: This article presents a new lost mold rapid prototyping method which combines selective laser sintering (SLS) and gelcasting techniques for fabricating piezoelectric ceramics. SLS was used to fabricate sacrificial molds of the desired structure of the ceramic part. Then aqueous PZT (lead zirconate titanate) suspension was cast in the mold and solidified in situ through formation of a three-dimensional network gel. Because the polymer mold can be easily removed at the initial stage of sintering and the gelcast PZT body has a high green strength, the desired geometry of the PZT part can be completely retained after sintering of the ceramics. Complex-shaped PZT parts were successfully fabricated after using concentrated PZT suspension with low viscosity. Densities and electrical properties, such as the d33, the relative permittivity e, the dielectric loss tgδ and the electromechanical coupling factor Kp of the gelcast PZT parts were also compared with those of the die-pressed PZT samples. The results indicated that the gel-forming process did not deteriorate the electrical properties of the samples, if proper dispersant was selected in developing concentrated ceramic slurry.
40 citations
TL;DR: In this article, the design, characterization, and drift due to electrical bias (DC drift) of thin-film lanthanum-doped lead zirconate titanate (PLZT) waveguide is reported using a Mach-Zehnder modulator.
Abstract: The design, characterization, and drift due to electrical bias (DC drift) of thin-film lanthanum-doped lead zirconate titanate (PLZT) waveguide is reported using a Mach-Zehnder modulator. The mechanism of the electrooptic responses based on hysteresis of the applied field is proposed to understand the behavior of the device. It is shown that the thin film exhibits a Kerr effect having a coefficient value of 5/spl times/10/sup -18/ (m/V)/sup 2/. It is reported that by utilizing hydrogen-deficient dry etching, the DC drift is improved by a factor of 3.5. In addition, the verification of the operation of a PLZT-based device for more than 1400 h at 70/spl deg/C is reported, for the first time.
40 citations
TL;DR: It is shown that the applied electric potential is the major contributor in reducing the adhesive force between protein and surface, and the desorbed protein is taken away by acoustic streaming shear stress.
40 citations