Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Producing article having plural hollow channels
Reexamination Certificate
2004-08-03
2008-11-04
Lopez, Carlos (Department: 1731)
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Producing article having plural hollow channels
C264S631000, C264S634000
Reexamination Certificate
active
07445745
ABSTRACT:
A method for fabricating a ceramic article which includes providing a batch comprising components of (i) a mixture of inorganic raw materials comprising talc, alumina, and silica; (ii) a binder comprising a water-soluble organic binder and a fibrous silicate mineral having a high aspect ratio in combination with a large surface area that is highly charged and has a strong interaction with a polar solvent, and is further characterized by a median particle size of 1-2 microns; and (iii) a polar solvent; mixing the batch components to form a homogenous and plasticized mass; shaping the plasticized mass into a green body wherein the green body has improved strength in a temperature region between 300°-900° C. to resist cracking during subsequent sintering; and, sintering the green body by heating to a temperature and for a time to initiate and sufficiently achieve conversion of the green body into a fired ceramic article.
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Corning Incorporated
Gheorghiu Anca C.
Homa Joseph M.
Lopez Carlos
Wayland Randall S.
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