Title:
FORMULATIONS WITH ACTIVE FUNCTIONAL ADDITIVES FOR 3D PRINTING OF PRECERAMIC POLYMERS, AND METHODS OF 3D-PRINTING THE FORMULATIONS
Document Type and Number:
WIPO Patent Application WO/2018/160241
Kind Code:
A3
Abstract:
This invention provides resin formulations which may be used for 3D printing and pyrolyzing to produce a ceramic matrix composite. The resin formulations contain a solid-phase filler, to provide high thermal stability and mechanical strength (e.g., fracture toughness) in the final ceramic material. The invention provides direct, free-form 3D printing of a preceramic polymer loaded with a solid-phase filler, followed by converting the preceramic polymer to a 3D-printed ceramic matrix composite with potentially complex 3D shapes or in the form of large parts. Other variations provide active solid-phase functional additives as solid-phase fillers, to perform or enhance at least one chemical, physical, mechanical, or electrical function within the ceramic structure as it is being formed as well as in the final structure. Solid-phase functional additives actively improve the final ceramic structure through one or more changes actively induced by the additives during pyrolysis or other thermal treatment.
Inventors:
ECKEL ZAK (US)
SCHAEDLER TOBIAS (US)
MARTIN JOHN (US)
CANTE KENNETH (US)
SCHAEDLER TOBIAS (US)
MARTIN JOHN (US)
CANTE KENNETH (US)
Application Number:
PCT/US2017/063211
Publication Date:
November 29, 2018
Filing Date:
November 27, 2017
Export Citation:
Assignee:
HRL LAB LLC (US)
International Classes:
C04B35/571; B33Y10/00; B33Y70/00; C04B35/56
Foreign References:
| US7183335B2 | 2007-02-27 | |||
| CN105131201A | 2015-12-09 | |||
| CN104924616A | 2015-09-23 | |||
| CN104761761A | 2015-07-08 |
Other References:
COLOMBO, P. ET AL.: "Feature article multifunctional advanced ceramics from preceramic polymers and nano-sized active fillers", JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, vol. 33, 2013, pages 453 - 469, XP055550684
Attorney, Agent or Firm:
O' CONNOR, Ryan (US)
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