Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Producing or treating inorganic material – not as pigments,...
Reexamination Certificate
2011-05-10
2011-05-10
Group, Karl E (Department: 1731)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Producing or treating inorganic material, not as pigments,...
C264S483000, C501S139000
Reexamination Certificate
active
07939007
ABSTRACT:
The present invention relates to a method of preparing ceramics based on lanthanum-doped barium titanate, which comprises the following steps: (a) flash sintering of lanthanum-doped barium titanate powders; and (b) heat treatment of the material thus obtained, in an air atmosphere or in an oxidising atmosphere. The invention also relates to ceramics based on lanthanum-doped barium titanate, possessing a very high real part of the relative dielectric permittivity, and to their use for obtaining capacitors of high capacitance and high capacitance per unit volume for high-voltage withstand capability.
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Boulos Madona
Durand Bernard
Guillemet Sophie
Lebey Thierry
Nguyen Quang
Centre National de la Recherche Scientifique "CNRS"
Foley & Lardner LLP
Group Karl E
Universite Paul Sabatier (Toulouse III)
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