期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 39, 期 4, 页码 1336-1343出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2018.11.038
关键词
Preceramic polymers; Active fillers; Additive manufacturing; Digital light processing; Stereolithography
资金
- CARIPARO Foundation, Padova, Italy
By taking advantage of the multi-functional properties of preceramic polymers, their transformation into ceramic material at low sintering temperatures and the processing capabilities of polymer manufacturing processes, mullite components were fabricated by additive manufacturing. A photocurable silicone preceramic polymer resin containing alumina particles was shaped into complex structures via Digital Light Processing. Dense and crack-free, highly complex porous mullite ceramics were produced by firing a mixture of a commercially available photosensitive polysiloxane as the silica source, containing alumina powder as active filler, in air at a low sintering temperature (1300 degrees C). In particular, the developed formulations, coupled with the additive manufacturing approach, allow for precise control of the architecture of the porous ceramic components, providing better properties compared to parts with stochastic porosity.
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