SYLRAMIC SiC FIBER - COI Ceramics

1 SiC FIBERS ylramic SiC Fiberis a 10 m diametercrystalline silicon carbide (SiC) FIBER with thehighest temperature capability of any availableSiC is manufactured by COIC eramics, Inc. (COIC) and is commerciallyavailable as tow. Additional product informationis provided on the other side of this technical staff may be contacted at(801)251-8111 for delivery needs and SiC Fiberis typically used as areinforcement in various materials includingceramic, plastic, and metal matrix such as aircraft and land-basedturbine engines, hypersonic vehicles, thermalprotectionsystems,andcomponentsin chemical manufacturing equipment. The useofSylramic SiC Fiberprovides increasedstrength, toughness, chemical resistance, andhigh temperature creep resistance of SiC Fiberis manufactured at theCOIC San Diego facility, which also specializesin the manufacture of both oxide and nonoxideCMC COIC Salt Lake Cityfacility serves as the worldwide distribution andcustomer service center for ceramic fiberreinforcement use of twofacilities ensures the confidentiality of thecustomer-specific FIBER and CMC Ceramics , West 4100 , Utah Ceramics , Inc.

2 (COIC) is the leadingsupplier of high temperatureSylramic andNicalon SiC has also beenmanufacturing and supplying ceramic matrixcomposites (CMCs) that incorporate thesefibers since FORMS ylramic SiC fiberis provided as a textilegrade continuous tow (yarn) made up of 800filaments with a denier of 1600. Each filament is10 m in diameter, and the tow is coated withpolyvinyl alcohol (PVA) sizing for SiC Fiberreinforcement in 8 diameter CMCcombustor liners. Filament-wound liner (left, before test) andinvolute-layup liner (after rig testing).Rev. Jan. SiC FIBER TowContinuous tow is supplied on 3 inch diametercardboard spools. Lengths up to 800 meters (145grams) are available. Tow length may SiC FIBER , WovenAs a textile grade yarn, SYLRAMIC SiC Fibercan be readily incorporated into a variety ofweaves, woven tapes, braids, etc.

3 A network contractors exists to respond to your exactneeds. Contact COI Ceramics to discussspecifics and receive further PROPERTIESS ylramic SiC Fiberhas excellent roomtemperature strength and stiffness. The FIBER hasexcellent creep resistance, maintaining strengthand stiffness for extended times at extremelyhigh temperatures (> 1400 C / 2252 F). Thesefiber properties are due to its chemicalcomposition, crystalline structure, small crystalsize, and very low oxygen content. This alsoallows it to have excellent wear and corrosionresistance Table 1 for typicalproperties and composition SiCFiberovercomesthedisadvantages of other materials. Oxide fibersand superalloys may lose their mechanicalproperties above 800 C (1472 F). SiCO fiberslose mechanical properties above 1000 C(1832 F), while amorphous SiC fibers losemechanical properties above 1200 C (2192 F).

4 Larger diameter (100 m), crystalline SiC fibersare not easily HANDLING INFORMATIONP roduct safety information required for safe useis available as a Material Safety Data Sheet(MSDS). The MSDS is available from COIC,and should be consulted before handling WARRANTYCOI Ceramics believes that the informationcontained herein is an accurate description ofthe typical properties and uses of this product,but it is the users responsibility to test thematerial to determine its performance andsafety in specific solewarranty is that the product meets the 1: Typical SYLRAMIC SiC FIBER Characteristics & CompositionCharacteristicDiameterDenierF ilamentsDensityOxygenTensile Strength (RT)Tensile Modulus (RT)Unitsmicrong/9000 meag/cm3wt%ksiMsiTypical101600800> < >400>45 CompositionSiCTiB2B4 COxygenCrystal Size (microns) - : Hugh Spilker, Ceramics , West 4100 , Utah Jan.

5 2013