Results 171 to 180 of about 18,963 (233)
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Lead titanate zirconate — based pyroelectric ceramics
Ceramurgia International, 1978Abstract 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 +3 more
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Refatigue of Ferroelectric Lead Zirconate Titanate
Journal of the American Ceramic Society, 2010Bipolar fatigue of ferroelectric lead zirconate titanate ceramics can be partly recovered by thermal annealing. For samples of initially, intermediately, or highly fatigued state, subsequent refatiguing yields a much more rapid decay in polarization and piezoelectric constant than the initially nonfatigued samples despite very ...
Zhang, Yong, Lupascu, Doru C.
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Lead titanate and lead zirconate titanate piezoelectric glass-ceramics
Ferroelectrics, 1994Abstract The crystallization behavior and electrical properties of a piezoelectric glass-ceramic system consisting of lead titanate (PT) or lead zirconate titanate (PZT) in a lead borosilicate matrix is presented. Glass powders of compositions in this system densify at 650°C, and crystallize the ferroelectric PT or PZT phases.
B. Houng, M. J. Haun
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Layered lead zirconate titanate and lanthanum-doped lead zirconate titanate ceramic thin films
Journal of Materials Research, 2002The 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 +3 more
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Fractoemission from Lead Zirconate‐Titanate
Journal of the American Ceramic Society, 1985We 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 +2 more
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Unipolar fatigue of ferroelectric lead–zirconate–titanate
Journal of the European Ceramic Society, 2003In 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 +2 more
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Fatigue of lead titanate and lead zirconate titanate thin films
Physics of the Solid State, 2008The 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 +5 more
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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 +2 more
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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 +2 more
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Electrohydrodynamic Deposition of Nanostructured Lead Zirconate Titanate
Journal of Nanoscience and Nanotechnology, 2005The deposition of a propanol-based lead zirconate titanate (PZT) sol using electrohydrodynamic atomization (EHDA) in the stable cone-jet mode was investigated. The droplets generated were deposited onto a copper substrate as a film, which was investigated using X-ray diffraction and scanning electron microscopy.
Sun, D +4 more
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