Method of forming mullite bodies

Details Method of forming mullite bodies Method of forming mullite bodies

2003-03-24

2008-09-16

Lopez, Carlos (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Producing article having plural hollow channels

C264S630000, C264S631000, C264S645000

Reexamination Certificate

active

07425297

ABSTRACT:
A method of forming a porous mullite composition of acicular mullite grains having improved properties is described, where the mullite is formed at some time in the presence of a fluorine containing gas. For example, it has been discovered that improved properties may result from heating the mullite to a high temperature in an atmosphere selected from the group consisting of water vapor, oxygen, an inert gas or mixtures thereof or forming the mullite composition from precursors having an AL/Si ratio of at most 2.95.

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