期刊
CERAMICS INTERNATIONAL
卷 44, 期 10, 页码 11030-11038出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2018.03.075
关键词
Polymer-derived-ceramics; Digital Light Processing 3D printing; Multiple metals doping; Octet truss structure; SiOC ceramic
资金
- Key Project Fund for Science and Technology Development of Guangdong Province [2017B090911014]
- Shenzhen Peacock Plan Technology Innovation Project [KQJSCX20170327150948772]
- Shenzhen Fundamental Research Project [JCYJ20150626090430369]
- China Postdoctoral Science Foundation [2017M620387]
Multiple metals doped polymer-derived SiOC ceramics with octet truss structure were prepared by employing a photosensitive methyl-silsesquioxane as preceramic polymer through sol-gel method and Digital Light Processing 3D printing. The physical and chemical properties of the preceramic polymers and printed octet truss structure SiOC ceramics were investigated. Results show that the organosilicon preceramic polymers have outstanding photocuring properties and could transform into amorphous SiOC ceramics at 800-1200 degrees C. It is illustrated that the excellent mechanical properties of SiOC ceramics with octet truss structure (after 3D printing and pyrolysis) are attributed to the metal elements pinning in the amorphous matrix on the atomic level. Doping other metal elements such as Fe, Ni, Co, Pt, etc, is thought to bring promising properties for the lattice structure SiOC ceramics and potentially further expand its applications in the future.
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