Results 111 to 120 of about 1,656 (147)
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Effect of excess PbO on microstructure and mechanical properties of (Pb0.975Ba0.025)ZrO3 ceramics
Current Applied Physics, 2006Abstract (Pb 0.975 Ba 0.025 )ZrO 3 (PBZ2.5) ceramics were fabricated from their oxide mixture via the solid state reaction method. Excess PbO (1, 3, 5 and 10 wt%) was added together with starting materials to compensate for PbO loss from evaporation during calcination and sintering. The phase structure was analyzed by XRD.
T. Bongkarn, G. Rujijanagul
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Role of excess PbO on the microstructure and dielectric properties of lead magnesium niobate
Journal of Materials Research, 1995Stoichiometric and 2 wt. % excess lead oxide containing lead magnesium niobate (PMN) ceramics have been prepared by partial oxalate route. Dielectric measurements with frequency showed a typical relaxor behavior for stoichiometric PMN, while PMN with excess PbO shows a scatter in the dielectric curves at all temperatures above Tc.
GUPTA, SM, KULKARNI, AR
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Journal of the American Ceramic Society, 2010
Lead scandium tantalate (PbSc 0.5 Ta 0.5 O 3 , or PST) ceramics with the addition of 0.5–10 wt% excess PbO were fabricated by the hot‐pressing method.
Wei Liu +5 more
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Lead scandium tantalate (PbSc 0.5 Ta 0.5 O 3 , or PST) ceramics with the addition of 0.5–10 wt% excess PbO were fabricated by the hot‐pressing method.
Wei Liu +5 more
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Dependence of Grain Shape and Growth on PT Content in PbO‐Excess PMN–PT
Journal of the American Ceramic Society, 2006When Pb(Mg 1/3 Nb 2/3 )O 3 (PMN) with 40 wt% excess PbO is sintered at 1050°C, the grains grow normally and have flat {100} surface segments with round edges. As PbTiO
Seo, CE +3 more
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Optimization of Sol-Gel Derived PZT thin Films by the Incorporation of Excess PBO
MRS Proceedings, 1992ABSTRACTA series of PZT precursor solutions was prepared which incorporated excess PbO to give the composition Pb1+xZr0.53Ti0.47O3+x, where 0 < × < 0.3. These solutions were spin coated on platinized Si wafers and fired at elevated temperatures up to 750C for 30 mins.
G. Teowee, J. M. Boulton, D. R. Uhlmann
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Effects of Excess PbO and Zr/Ti Ratio on Microstructure and Electrical Properties of PZT Films
Journal of the American Ceramic Society, 2008Lead zirconate titanate films with different Zr/Ti ratios were fabricated on a platinized silicon substrate using radio frequency magnetron sputtering. Crack‐free films with a rhombohedral, morphotropic phase boundary and tetragonal compositions were deposited using single oxide targets containing various amounts of excess PbO ...
Chee‐Sung Park +2 more
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Materials Science Forum, 2005
The oriented 0.67Pb (Mg1/3Nb2/3)O3-0.33PbTiO3 (PMNT) polycrystals were prepared by the conventional ceramic technique and the templated grain growth method adding excess PbO in the matrix. Kinetics of the development of oriented structure was investigated systemically.
Lili Zhao +3 more
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The oriented 0.67Pb (Mg1/3Nb2/3)O3-0.33PbTiO3 (PMNT) polycrystals were prepared by the conventional ceramic technique and the templated grain growth method adding excess PbO in the matrix. Kinetics of the development of oriented structure was investigated systemically.
Lili Zhao +3 more
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Proceedings, annual meeting, Electron Microscopy Society of America, 1994
Ferroelectric thin films have recently received considerable attention because of their potential in a range of device applications including both volatile and non-volatile memories, optical data storage, and other electrooptic applications (e.g. waveguides, switches, and modulators).
M. J. Lefevre, D. B. Dimos, J. S. Speck
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Ferroelectric thin films have recently received considerable attention because of their potential in a range of device applications including both volatile and non-volatile memories, optical data storage, and other electrooptic applications (e.g. waveguides, switches, and modulators).
M. J. Lefevre, D. B. Dimos, J. S. Speck
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Advanced Materials Research, 2008
In this work, we studied the effect of excess PbO on crystal structure, microstructure and phase transition of lead titanate (PT). PT was prepared via a mixed oxide method with various PbO levels (0, 1, 3 and 5 wt.%). The raw materials were calcined at 750 oC for 2 h and sintered at 1225 oC for 2 h.
W. Tangkawsakul +2 more
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In this work, we studied the effect of excess PbO on crystal structure, microstructure and phase transition of lead titanate (PT). PT was prepared via a mixed oxide method with various PbO levels (0, 1, 3 and 5 wt.%). The raw materials were calcined at 750 oC for 2 h and sintered at 1225 oC for 2 h.
W. Tangkawsakul +2 more
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Journal of Materials Science, 2011
Polycrystalline samples of (Pb0.25Sr0.75)TiO3 (PST75) were prepared by the solid-state reaction method. The effects of firing temperatures and excess PbO on PST75 ceramics were investigated. The PST75 was calcined between 600 and 1000 °C for 3 h and the sintering temperature ranged between 1050 and 1250 °C for 2 h.
Rattiphorn Sumang, Theerachai Bongkarn
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Polycrystalline samples of (Pb0.25Sr0.75)TiO3 (PST75) were prepared by the solid-state reaction method. The effects of firing temperatures and excess PbO on PST75 ceramics were investigated. The PST75 was calcined between 600 and 1000 °C for 3 h and the sintering temperature ranged between 1050 and 1250 °C for 2 h.
Rattiphorn Sumang, Theerachai Bongkarn
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