METHOD OF POLING FERROELECTRIC MATERIALS
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United States of America Patent
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Issued Date -
Jul 15, 2010
app pub date -
Jan 6, 2010
filing date -
Jan 12, 2009
priority date (Note) -
Abandoned
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Abstract
A method of poling a ferroelectric sample suitable for use in a fuel injector of an internal combustion engine, the method comprising providing a ferroelectric sample having a stack of ferroelectric layers, wherein adjacent layers are separated by internal electrodes, forming a first group and a second group of electrodes; applying a multiaxial pressure to the ferroelectric sample; reducing the bonding strength between each pair of adjacent ferroelectric layers and internal electrodes; and generating a first electric field between the first and second group of electrodes to pole each ferroelectric layer in a first poling direction.
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