KDT Ceraset Ultra Polysilazane

Melt-Fusible Ceramic Precursor/Melt Spinnable Fiber Precursor 

 KDT Ceraset Ultra Polysilazane is a solid Polysilazane that softens upon heating. KDT Ceraset Ultra Polysilazane can be melt- or solvent- spun into fibers. Fibers spun from KDT Ceraset Ultra Polysilazane are readily shape stabilized prior to pyrolysis by various methods including oxidative, chemical, radical- or UV-initiated processes. The resulting fibers can then be pyrolyzed to silicon carbide, silicon nitride, silicon carbonitride, or silicon carboxynitride by heating to temperatures greater than 1,000° C. The final ceramic phase is dependent upon the pyrolysis atmosphere. The ceramic yield as measured by thermal gravimetric analysis (TGA) is 84 % in a nitrogen atmosphere.

KDT Ceraset Ultra Polysilazane was specifically designed for use in ceramic fiber fabrication, but unique physical and rheological properties allow its use in other high performance ceramic applications where very high ceramic yield and processibility issues are important.

Suggested Applications:

• Ceramic Fibers
• Ceramic Matrix Composites (CMCs)
• Metal Matrix Composites (MMCs)
• Ceramic Joining
• SiC / Si3N4 Coatings for C/C Composite