Applications of fixed and variable frequency microwave (VFM) facilities in polymeric materials processing and joining
Paper
Ku, H. S., Siu, F., Siores, E., Ball, J. A. R. and Blicblau, A. S.. 2001. "Applications of fixed and variable frequency microwave (VFM) facilities in polymeric materials processing and joining." 5th Asia Pacific Conference on Materials Processing. Seoul, South Korea 25 Jun 2001 Lausanne, Switzerland. https://doi.org/10.1016/S0924-0136(01)00642-2
| Paper/Presentation Title | Applications of fixed and variable frequency microwave (VFM) facilities in polymeric materials processing and joining |
|---|---|
| Presentation Type | Paper |
| Authors | Ku, H. S. (Author), Siu, F. (Author), Siores, E. (Author), Ball, J. A. R. (Author) and Blicblau, A. S. (Author) |
| Journal or Proceedings Title | Journal of Materials Processing Technology |
| Journal Citation | 113 (1-3), pp. 184-188 |
| Number of Pages | 5 |
| Year | 2001 |
| Place of Publication | Lausanne, Switzerland |
| ISSN | 0924-0136 |
| 1873-4774 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1016/S0924-0136(01)00642-2 |
| Web Address (URL) of Paper | https://www.sciencedirect.com/science/article/abs/pii/S0924013601006422 |
| Conference/Event | 5th Asia Pacific Conference on Materials Processing |
| Event Details | 5th Asia Pacific Conference on Materials Processing Event Date 25 Jun 2001 Event Location Seoul, South Korea |
| Abstract | Microwave processing of materials is a relatively new technology advancement alternative that provides new approaches for enhancing material properties as well as economic advantages through energy savings and accelerated product development. Factors that hinder the use of microwaves in materials processing are declining, so that prospect for the development of this technology seem to be very promising [Ceram. Bull. 68 (2) (1989) 376]. The two mechanisms of orientation polarisation and interfacial space charge polarisation, together with DC conductivity, form the basis of high frequency heating. Clearly, advantages in utilising microwave technologies for processing materials include penetrating radiation, controlled electric field distribution and selective and volumetric heating. However, the most commonly used facilities for microwave processing materials are of fixed frequency, e.g. 2.45 GHz. This paper presents a state-of-the-art review of microwave technologies, processing methods and industrial applications, using variable frequency microwave (VFM) facilities. This is a new alternative for microwave processing. The technique is geared towards advanced materials processing and chemical synthesis. It offers rapid, uniform and selective heating over a large volume at a high energy coupling efficiency. This is accomplished using a preselected bandwidth sweeping around a central frequency employing frequency agile sources such as travelling wave tubes as the microwave power amplifier. Selective heating of complex samples and industrial scale-up are now viable. During VFM processing, a given frequency of microwaves would only be launched for less than 1 ms. |
| Keywords | variable frequency microwave; VFM facilities; characterisation; fibre reinforced thermoplastic matrix composite materials; bulk heating; penetrating radiation |
| ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
| 401205. Experimental methods in fluid flow, heat and mass transfer | |
| 401609. Polymers and plastics | |
| Byline Affiliations | Swinburne University of Technology |
| Department of Electrical, Electronic and Computer Engineering |
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