C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
25/141, 400/7211
C08L 83/16 (2006.01) C04B 35/571 (2006.01) C04B 35/575 (2006.01)
Patent
CA 2000822
HIGHLY DENSIFIED BODIES FROM PERCERAMIC POLYSILAZANES FILLED WITH SILICON CARBIDE POWERS ABSTRACT The preparation of highly densified ceramic bodies by the sintering of certain preceramic polysilazanes filled with silicon carbide powders, metal-containing sintering aids and, optionally, polysilazane curing agents is described. Such highly densified ceramic bodies can be prepared by either a pressureless sintering process or a hot press sintering process. The compositions of this invention can be formed into desired shapes and then sintered to form ceramic, shaped bodies with high densities. One advantage of the present invention is that the green bodies have relative high strengths and thus can be easily handled and, if desired, machined before sintering. The preceramic polysilazanes useful in this invention must yield ceramic chars which contains free or excess carbon in addition to carbon in the form of silicon carbide upon pyrolysis to elevated temperatures.
Burns Gary T.
Keller Ronald J.
Saha Chanda
Dow Corning Corporation
Gowling Lafleur Henderson Llp
LandOfFree
Highly densified bodies from preceramic polysilazanes filled... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Highly densified bodies from preceramic polysilazanes filled..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly densified bodies from preceramic polysilazanes filled... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1450721