Preceramic polymer derived cellular ceramics

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Zeschky J, Götz-Neunhoeffer F, Neubauer J, Lo SJ, Kummer B, Scheffler M, Greil P
Zeitschrift: Composites Science and Technology
Verlag: Elsevier
Jahr der Veröffentlichung: 2003
Band: 63
Heftnummer: 12
Seitenbereich: 2361-2370
ISSN: 0266-3538
Sprache: Englisch


Abstract


Ceramic foams were prepared by a self-blowing process of a poly(silsesquioxane) melt at 270 °C. The cell size, the interconnectivity density and the shape of the foam cells were adjusted by a thermal pre-curing procedure of the polymer at 200 °C. Inorganic fillers were used to modify processing behaviour and properties of the pyrolysed ceramic foam. After pyrolysis in inert atmosphere at 1200 °C ceramic composite foams with a total porosity up to 87% were obtained. The open cell ceramic foams had a mean cell diameter of 1.2 mm and a mean strut thickness of 0.2 mm. Interpenetrating phase composites (IPCs) were fabricated by infiltrating the open cellular ceramic preform with Mg alloy melt at 680 °C and a pressure of 86 MPa. The mechanical properties were found to depend on the reactions between the metal and the ceramic forming MgO, Mg2Si and Al12Mg17 as the major reaction products. The IPCs showed a significantly higher creep resistance at 135 °C, compression strength and elastic modulus compared to the unreinforced magnesium alloys. © 2003 Elsevier Ltd. All rights reserved.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Götz-Neunhoeffer, Friedlinde Prof. Dr.
Lehrstuhl für Mineralogie
Greil, Peter Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Neubauer, Jürgen apl. Prof. Dr.
Lehrstuhl für Mineralogie


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Zitierweisen

APA:
Zeschky, J., Götz-Neunhoeffer, F., Neubauer, J., Lo, S.J., Kummer, B., Scheffler, M., & Greil, P. (2003). Preceramic polymer derived cellular ceramics. Composites Science and Technology, 63(12), 2361-2370. https://dx.doi.org/10.1016/S0266-3538(03)00269-0

MLA:
Zeschky, Jürgen, et al. "Preceramic polymer derived cellular ceramics." Composites Science and Technology 63.12 (2003): 2361-2370.

BibTeX: 

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