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Proceedings Paper

Investigations in millimeter-wave processing of unidirectional carbon-fiber reinforced composite (CFRP) material
Author(s): Christian Hunyar; Lambert Feher; Manfred Thumm
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Paper Abstract

The use of carbon fiber reinforced composite materials (CFRP) in aerospace industries is consequently increasing due to their unique combination of characteristic features such as light weight, high specific mechanical strength etc. Currently the main obstacle for widespread industrial implementation is high manufacturing costs caused by the necessity of curing at elevated temperatures of 100-200 degree(s)C. Heating the CFRP materials to these temperatures in a conventional furnace is an energy consuming and therefore costly procedure. This paper presents a heating method by means of millimeter waves. Advantages of this method are presented along with theoretical considerations and numerical simulations of the heating process. The results of simulations of the anisotropic thermal and dielectrical material properties are shown and discussed on the basis of experiments.

Paper Details

Date Published: 10 June 2002
PDF: 9 pages
Proc. SPIE 4720, Intense Microwave Pulses IX, (10 June 2002); doi: 10.1117/12.469833
Show Author Affiliations
Christian Hunyar, Forschungszentrum Karlsruhe GmbH (Germany)
Lambert Feher, Forschungszentrum Karlsruhe GmbH (Germany)
Manfred Thumm, Forschungszentrum Karlsruhe GmbH and Univ. Karlsruhe (Germany)

Published in SPIE Proceedings Vol. 4720:
Intense Microwave Pulses IX
Howard E. Brandt, Editor(s)

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