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Ceramic Microtubes from Preceramic Polymers |
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| Authors: | Paolo Colombo § Katia Perini Enrico Bernardo Tiziano Capelletti Giorgio Maccagnan |
| Affiliation: | Dipartimento di Chimica Applicata e Scienza dei Materiali, Universitàdi Bologna, Viale Risorgimento, 2, 40136 Bologna, Italy, and Materials Research Institute, Department of Material Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802;Dipartimento di Ingegneria Meccanica–Settore Materiali, Universitàdi Padova, Via Marzolo 9, 35131 Padova, Italy;GIMAC S.r.L., Via Roma 12, 21040 Castronno (VA), Italy |
| Abstract: | A novel process for the production of ceramic microtubes involving the microextrusion of preceramic polymers was studied. Microtubes with a wide range of inner and outer diameters and several centimeters long were produced from two silicone resins. A coextrusion approach was also used to extend the forming capability of the technique. The addition of carbon black resulted in electrically conductive silicon oxycarbide (SiOC) ceramic microtubes. SiOC microtubes possessed a high bending strength, ranging from ～30–1100 MPa. |
| Keywords: | silicon oxycarbide polymers/polymerization extrusion |