Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/871

Title

Characterisation of thermoplastic matrix composites using variable frequency microwave

Author(s)

Ku, Harry S.;  MacRobert, M.;  Siores, Elias;  Ball, Jim A. R.

Abstract

In most industrial microwave processing operations, the frequency of the microwave energy launched into the waveguide or cavity containing the sample is fixed. This brings with it inherent heating uniformity problems. This paper describes a new technique for microwave processing, known as variable frequency microwave (VFM) processing, which alleviates the problems brought about by fixed frequency microwave processing. In VFM processing, microwave energy over a range of frequencies is transmitted into the cavity in a short time, e.g. 20 s. It is therefore necessary to determine the best frequency range for processing a material. The best range frequency for microwave processing of five different thermoplastic matrix composites using the VFM facilities has been determined. The optimum frequency band for microwave processing of these five materials was in the range 8–12 GHz. This data enables bonding of the materials using microwave energy under the most favourable conditions.

Publication type

Journal article

Research centre

Swinburne University of Technology. Industrial Research Institute Swinburne

Source

Plastics, rubber and composites, Vol. 29, no. 6 (June 2000), pp. 285-287

Publication year

2000

Publisher

IOM Communications

ISSN

1465-8011

Publisher URL

http://www.ingentaconnect.com/content/maney/prc/2000/00000029/00000006

Copyright

Copyright © 2000 IoM Communications Ltd.

Peer reviewed