Loss tangent for low loss thermoplastic composites

Ku, Harry S. and Ball, James A. R. and Siores, Elias and Chan, Peter (1999) Loss tangent for low loss thermoplastic composites. Science and Engineering of Composite Materials, 8 (3). pp. 123-128. ISSN 0792-1233

Abstract

[Abstract]: A resonant cavity method was employed to measure the ε″ of low loss thermoplastic composites e.g. 33% by weight glass fibre reinforced low density polyethylene [LDPE/GF (33%)]. The values of ε″ obtained by suspending the sample upright in the middle of the cavity were acceptable but the values of ε′ procured were far away from those obtained by other measuring methods, particularly at higher frequencies using WR159 and WR90. This paper describes the same method with the sample placing on the floor of the cavity. The sample thickness was also reduced to two-third of the original value. The values of Q factors procured by different methods were also compared and discussed.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: No
Item Status: Live Archive
Additional Information: Permanent restricted access to paper due to publisher copyright restrictions.
Depositing User: Dr Harry Ku
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 12 Jun 2008 00:25
Last Modified: 02 Jul 2013 23:02
Uncontrolled Keywords: low loss, glass fibre, low densioty polyethylene, Q factor
Fields of Research (FOR2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
URI: http://eprints.usq.edu.au/id/eprint/4165

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