Results 181 to 190 of about 8,947 (233)

Fatigue of lead titanate and lead zirconate titanate thin films

Physics of the Solid State, 2008
The fatigue of lead titanate and lead zirconate titanate ferroelectric thin films, i.e., a change in the polarization as a function of the number of switching cycles in an external electric field, is investigated experimentally. The threshold numbers of switching cycles are determined to be 1010–1011 for the lead titanate films and 109–1010 for the ...
A. S. Sidorkin, L. P. Nesterenko, A. L. Smirnov, G. L. Smirnov, S. V. Ryabtsev, A. A. Sidorkin   +5 more
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Lead titanate zirconate — based pyroelectric ceramics

Ceramurgia International, 1978
Abstract Ceramics with a base composition PbTlxZr1−xO3 (x = 0.07) and modified materials by additions of Nb2O5, Fe2O3 and U3O8 In ≤ 1 wt. % concentration were pressure sintered to near theoretical densities. The effect of these additives on the microstructure and on the dielectric properties are reported and discussed in terms of the A- and O ...
B. Hardiman, K.V. Kiehl, C.P. Reeves, R.R. Zeyfang   +3 more
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Unipolar fatigue of ferroelectric lead–zirconate–titanate

Journal of the European Ceramic Society, 2003
In multilayer actuators the ferroelectric material is known to degrade under bipolar and to some degree under unipolar electric loading. Fatigue effects due to unipolar cycling of a commercial bulk lead–zirconate–titanate up to 4·108 cycles at 2 Ec are demonstrated. Unipolar as well as bipolar polarisation and strain hysteresis loops are measured after
Verdier, Cyril, Lupascu, Doru C., Rödel, Jürgen   +2 more
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Layered lead zirconate titanate and lanthanum-doped lead zirconate titanate ceramic thin films

Journal of Materials Research, 2002
The physical layering of sol-gel-derived lead zirconate titanate (PZT) 52/48 and lanthanum-doped PZT (PLZT) 2/52/48 on platinized silicon substrates was investigated to determine if the ferroelectric properties and fatigue resistance could be influenced by different layering sequences.
Todd Myers, Parag Banerjee, Susmita Bose, Amit Bandyopadhyay   +3 more
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Ferroelectric Lead Zirconate Titanate and Barium Titanate Nanotubes

Integrated Ferroelectrics, 2003
Wetting of the pore walls of porous templates is a simple and convenient method to prepare nanotubes. Ferroelectric lead zirconate titanate and barium titanate nanotubes were fabricated by wetting of porous silicon templates of polymeric precursors.
Y. Luo, I. Szafraniak, V. Nagarajan, R. B. Wehrspohn, M. Steinhart, J. H. Wendorff, N. D. Zakharov, R. Ramesh, M. Alexe   +8 more
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Hydrogen diffusion in lead zirconate titanate and barium titanate

Journal of Applied Physics, 2012
Hydrogen is a potential clean-burning, next-generation fuel for vehicle and stationary power. Unfortunately, hydrogen is also well known to have serious materials compatibility issues in metals, polymers, and ceramics. Piezoelectric actuator materials proposed for low-cost, high efficiency high-pressure hydrogen internal combustion engines (HICE) are ...
K. J. Alvine, M. Vijayakumar, M. E. Bowden, A. L. Schemer-Kohrn, S. G. Pitman   +4 more
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Electrodeposition of lead zirconate titanate nanotubes

Journal of Materials Science, 2008
Lead zirconate titanate (PZT) nanotubes have been grown using porous anodic alumina templates. Sol–gel electrophoretic deposition method was utilized to form the nanotubes on pore walls. The templates were prepared using various anodizing voltages to achieve different pore diameters. Phosphoric acid solution was employed as the electrolyte.
A. Nourmohammadi, M. A. Bahrevar, S. Schulze, M. Hietschold   +3 more
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Fractoemission from Lead Zirconate‐Titanate

Journal of the American Ceramic Society, 1985
We present measurements of the electron, positive ion, and photon emission accompanying the fracture in vacuum of poly‐crystalline 95/5 lead zirconate‐titanate. The intensities of the charged‐particle components of this fractoemission are shown to depend strongly on the direction (relative to the direction of fracture) and magnitude of polarization ...
J. T. DICKINSON, L. C. JENSEN, W. DAVID WILLIAMS   +2 more
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Low Voltage Lead Zirconate Titanate (PZT) and Lead Niobate Zirconate Titanate (PNZT) Hysteresis Loops

Japanese Journal of Applied Physics, 1997
A major emerging market for ferroelectric non-volatile memories is the RF tag. In that application, low power and low voltage memory operation is essential. Historically, the lead zirconate titanate (PZT) family has not been noted for low voltage hysteresis loops but this is a function of process and not a property of the material.
Leonard L. Boyer, Naomi Velasquez Evans, Jr. Jr.   +2 more
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Switching of polycrystalline lead zirconate titanate

Journal of Physics D: Applied Physics, 1969
Measurements are described of the switching currents in polycrystalline lead zirconate titanate as a function of time and applied electric field. Samples of three compositions were investigated: Pb(Zr0·65 Ti0·35)0·99 Nb0·01 O3, Pb(Zr0·52 Ti0·48)0·99 Nb0·01 O3 and Pb Zr0·55 Ti0·45 O3. The results of these measurements show that the switching current has
P H White, B R Withey
openaire   +1 more source