D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
18/636.1
D01F 6/96 (2006.01) C04B 35/571 (2006.01) C04B 35/589 (2006.01) D01F 9/08 (2006.01)
Patent
CA 2033648
POLYMER DERIVED CERAMIC FIBERS HAVING IMPROVED THERMAL STABILITY ABSTRACT The present invention relates to ceramic fibers of the Si-C-N-O series with a diameter less than about 20 micrometers. It has been unexpectedly found that the thermal stability of these fibers can be increased by minimizing the impurity content, primarily the content of metals or metallic compounds. Such fibers with low levels of contaminants retain greater than about 60 percent of their initial tensile strength when subjected to temperatures of 1300-1400°C for at least 30 minutes in a non-oxidative environment.
Freeman Harvey A.
Langley Neal R.
Li Chi-Tang
Lipowitz Jonathan
Rabe James A.
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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