US Patent:
20200290931, Sep 17, 2020
Inventors:
- Malibu CA, US
Andrew P. NOWAK - Los Angeles CA, US
Ashley M. DUSTIN - Los Angeles CA, US
April R. RODRIGUEZ - Santa Monica CA, US
Phuong BUI - Thousand Oaks CA, US
Tobias A. SCHAEDLER - Oak Park CA, US
International Classification:
C04B 35/571
B33Y 70/00
B33Y 80/00
B28B 1/00
C08G 77/50
Abstract:
This disclosure provides resin formulations which may be used for 3D printing and thermally treating to produce a ceramic material. The disclosure provides direct, free-form 3D printing of a preceramic polymer, followed by converting the preceramic polymer to a 3D-printed ceramic composite with potentially complex 3D shapes. A wide variety of chemical compositions is disclosed, and several experimental examples are included to demonstrate reduction to practice. For example, preceramic resin formulations may contain a carbosilane in which there is at least one functional group selected from vinyl, allyl, ethynyl, unsubstituted or substituted alkyl, ester group, amine, hydroxyl, vinyl ether, vinyl ester, glycidyl, glycidyl ether, vinyl glycidyl ether, vinyl amide, vinyl triazine, vinyl isocyanurate, acrylate, methacrylate, alkacrylate, alkyl alkacrylate, phenyl, halide, thiol, cyano, cyanate, or thiocyanate. The resin formulations may contain a solid-phase filler, to provide high thermal stability and mechanical strength (e.g., fracture toughness) in the final ceramic material.
