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Preparation of Ceramic Composites byActive-Ftller-Controlled-Polymer-Pyrolysis

Published online by Cambridge University Press:  21 February 2011

Paolo Colombo ,
Mohamed O. Abdirashid ,
Massimo Guglielmi ,
Luca Mancinelli Degli Esposti  and
Luca Agostini
Paolo Colombo
Affiliation:
Dipartimento di Ingegneria Meccanica, Settore Materiali, Université di Padova, via Marzolo 9, 35131 Padova, Italy
Mohamed O. Abdirashid
Affiliation:
Dipartimento di Ingegneria Meccanica, Settore Materiali, Université di Padova, via Marzolo 9, 35131 Padova, Italy
Massimo Guglielmi
Affiliation:
Dipartimento di Ingegneria Meccanica, Settore Materiali, Université di Padova, via Marzolo 9, 35131 Padova, Italy
Luca Mancinelli Degli Esposti
Affiliation:
I.S.R.I.M., Loc. Pentima Bassa 21, 05100 Terni, Italy
Luca Agostini
Affiliation:
I.S.R.I.M., Loc. Pentima Bassa 21, 05100 Terni, Italy
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Abstract

Active-filler-controlled-polymer-pyrolysis has recently been reported as anovel processing route for preparing near-net shape bulk ceramic compositematerials. Active fillers, like Ti or Si powders, may react with solid orgaseous decomposition products of the polymer or with the heating gasatmosphere. In this study, a mixture of silicone resin (GE SR350) and Sipowder was heated at temperatures up to 1430°C in Ar or N2. Afterthe highest temperature firing, the resulting material was primarilycomprised of SiC and SiOC when the heating was performed in Ar, or of SiOC,SiC, Si3N4 and Si2N2O when theheating was performed in N2. The evolution of the microstructureof the ceramic composite was followed by DTA-TGA, FT-IR and XRD.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 346: Symposium N – Better Ceramics Through Chemistry VI , 1994 , 403
Copyright
Copyright © Materials Research Society 1998

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References

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