Influence of Compressive Pressure, Vacuum Pressure, and Holding Temperature Applied during Autoclave Curing on the Microstructure of Unidirectional CFRP Composites

Author:

Sudarisman 1,Davies Ian J.1

Affiliation:

1. Curtin Universtiy of Technology

Abstract

The microstructure (i.e., fibre volume fraction, void content, and fibre misalignment) of unidirectional carbon fibre-reinforced polymer (CFRP) composites was optimised by controlling several parameters during manufacture, namely: (i) compressive pressure (0.25~1.25 MPa, in steps of 0.25 MPa), (ii) vacuum pressure (−0.15, −0.20, −0.30, −0.45, and −0.65 MPa), and (iii) holding temperature (100~140 oC, in steps of 10 oC), applied during autoclave curing with the holding time being 30 minutes for all specimens. Optical micrographs captured from cross-sectional, through-the thickness areas, and in-plane areas of the resulting composites were evaluated and analysed in order to describe their microstructural characteristics.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

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