Dispersible barium titanate-based particles and methods of forming the same
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United States of America Patent
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Issued Date -
Mar 27, 2003
app pub date -
Sep 16, 2002
filing date -
Sep 21, 2001
priority date (Note) -
Abandoned
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Abstract
Dispersible barium titanate-based particles and methods of forming the same are provided. One method involves subjecting the barium titanate-based particles to a heating step which removes hydroxyl groups from particle surfaces. Another method involves attaching a coupling agent to surfaces of the barium titanate-based particles. Both methods reduce the tendency of particles to agglomerate and/or aggregate when subsequently dispersed in a fluid. Thus, the methods enable production of dispersions that have a relatively uniform distribution of particles throughout. Such dispersions may be further processed as desired to form, for example, dielectric layers, polymer/dielectric composites or other structures. The structure may also include a uniform distribution of barium titanate-based particles which can improve properties amongst other advantages.
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