Barrier Coatings for a Piezoelectric Device
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United States of America Patent
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Issued Date -
Jul 22, 2010
app pub date -
Feb 14, 2007
filing date -
Feb 14, 2006
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Abandoned
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Abstract
Provided are barrier coatings and methods for applying barrier coatings to piezoelectric actuators that are intended for use in automotive fuel injectors. The barrier coatings are characterised by the presence of at least one organic layer, and additionally metal and/or non-metallic inorganic layers. The barrier coatings described show advantage in resisting permeation by liquid fuel, water and other contaminants.
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