Results 241 to 250 of about 42,565 (266)

Ferroelectric Lead Zirconate Titanate and Barium Titanate Nanoshell Tubes

MRS Proceedings, 2003
ABSTRACTWetting of the pore walls of porous templates is a simple and convenient method to prepare nanoshell tubes. Wafer-scale fabrication of ferroelectric lead zirconate titanate and barium titanate nanoshell tubes was accomplished by wetting porous silicon templates with polymeric precursors.
Yun Luo, Izabela Szafraniak, Valanoor Nagarajan, Ralf B. Wehrspohn, Martin Steinhart, Joachim H. Wendorff, Nicolai D. Zakharov, Ramamoorthy Ramesh, Marin Alexe   +8 more
openaire   +1 more source

Thermodynamics of Nanoscale Lead Titanate and Barium Titanate Perovskites

Journal of the American Ceramic Society, 2012
To explore the surface properties of perovskites with ions of different bond character, the surface and interface enthalpies of nanocrystalline PbTiO 3 and BaTiO
Gustavo C. C. Costa, Pardha Saradhi Maram, Alexandra Navrotsky   +2 more
openaire   +1 more source

Complex rare-earth substituted lead titanate piezoceramics

14th IEEE International Symposium on Applications of Ferroelectrics, 2004. ISAF-04. 2004, 2005
Rare earth substituted piezoelectric ceramics with the composition Pb x RE y Ti 0.98 Mn 0.02 O 3 , with RE = Pr, Pr+Eu, Gd+Nd, and a few percent of bismuth to partially substitute the lead, have been prepared by solid state reaction of oxide powders. Structural and morphological investigations were performed on the poled samples.
Dimitriu E, Craciun F, Ramer R, Prodan G, Ciupina V   +4 more
openaire   +5 more sources

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
openaire   +1 more source

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
openaire   +1 more source

Multilayer Lead Zirconate Titanate and Barium Titanate Ferroelectric Capacitors

MRS Proceedings, 1996
AbstractFerroelectric PbZrxT1−xO3 (PZT) thin films have been deposited on Pt coated Si substrates by if magnetron sputtering. The optimized processing condition to obtain proper stoichiometric PZT, the desired ferroelectric perovskite phase, and better dielectric properties was demonstrated using a PZT target with Pb(Zr+Ti) ratio of 1.2 and depositing ...
L.H. Chang, W.A. Anderson
openaire   +1 more source

Vaporization of Lead Zirconate‐Lead Titanate Materials

Journal of the American Ceramic Society, 1967
A thermogravimetric investigation of the vaporization of cold‐pressed Pb(Zr 0.65 Ti 0.35 )O 3 in vacuum from 690° to 1130°C shows that the vaporization occurs in two steps.
openaire   +1 more source

Lead titanate nano- and microtubes

Journal of Materials Research, 2006
Lead titanate (PbTiO3) nano- and microtubes were fabricated by wetting ordered porous alumina and macroporous silicon with precursor oligomers coupled with templated thermolysis. The diameters of the PbTiO3 tubes range from a few tens of nanometers up to one micron.
Lili Zhao, Martin Steinhart, Jian Yu, Ulrich Gösele   +3 more
openaire   +1 more source

High voltage photovoltaic effect in barium titanate and lead titanate-lead zirconate ceramics

Journal of Solid State Chemistry, 1975
Abstract Steady large photo-emf's proportional to length and remanent polarization were observed in the ceramic materials: BaTiO3 + 5 wt% CaTiO3, Pb(Zr0.53, Ti0.47)O3 with 1 wt% Nb, and hot pressed Pb(Zr0.65, Ti0.35)O3 with 7 and 8% lanthanum for lead substitutions. Photo-emf's are also dependent on material, grain size, and temperature.
openaire   +1 more source

Ferroelectric Properties of Lead Titanate

Journal of the American Ceramic Society, 1968
The eutectic and solidus temperatures of the PbTiO 3 ‐KF binary system were investigated by DTA for four compositions. Optical studies of crystal habit as a function of crystallization conditions were used to determine favorable conditions for growing PbTiO 3
V. G. BHIDE, M. S. HEGDE, K. G. DESHMUKH
openaire   +1 more source