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Single crystals of bismuth ferrite-lead titanate (BFPT) were grown using a flux method. Starting from bismuth ferrite, we added lead titanate, to produce a range of compositions within the BiFeO3-PbTiO3 solid solution, through to the morphotropic phase boundary (MPB). Using a PbO:Bi2O3 flux, and a cooling rate of 0.5°C/h over the temperature range where crystal growth is expected, our aim was to produce...
Large-size Pb(Zn1/3Nb2/3)O3-PbTiO3 (PZN-PT) single crystals of different PT contents were successfully grown using an improved flux growth technique. Measurements made from samples of different orientation cuts revealed that PZN-(6-7)%PT single crystals exhibit exceptional dielectric and electromechanical properties. When poled in [001] direction, these crystals yield KT ap 7000, d33 ap 2800 pC/N...
A nondestructive quality evaluation and control procedure for large-area, [001]-cut PZN-8%PT wafers is described. The crystals were grown by the flux technique engineered to promote [001] layer growth of the crystals. The wafers were sliced parallel to the [001] layer growth plane. Curie temperature (T/sub c/) variations, measured with matching arrays of dot electrodes (of 5.0 mm in center-to-center...
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