Nanocomposites

KDT Polymer resins have been used to fabricate nanocomposites in-situ by selective pyrolysis of its preceramic polymers.  Using KDT polysilazanes Si3N4-SiC nanocomposites have been prepared.  The microstructure of the nanocomposite, and thus the resulting properties, can be controlled by varying the chemistry of the precursor polymer or the processing conditions.

In addition to the inclusion of nano-domains through pyrolysis of preceramic polymers, nanoparticles can be added to the polymer resin to modify the structure and/or properties of the material.  Future generations of energy-efficient heat engines and high-subsonic to supersonic airplanes and spacecraft will require high-performance structural materials in elevated temperature regimes.  The performance requirements for these applications exceed the properties of current high temperature materials.  One solution to improving these mechanical properties at high temperatures is by the introduction of nanoparticles into the matrix.  For ceramic composites requiring such nano-phase reinforcement KDT’s ceramic precursor technology is uniquely applicable. 

Benefits of Using KDT Polymers for Nanocomposites:

• Controllable polymer microstructure
• High thermal stability
• Low creep
• Low porosity
• Sintering aids not required

KDT Products for Nanocomposite Fabrication:

• KDT Ceraset Polysilazane 20
• KDT Ceraset Polyureasilazane