Data on the strength of carbon fibres, first examined by Crowder (1994), are re-analysed. The new analysis is Bayesian and is implemented using Markov chain Monte Carlo methods. The flexibility of this approach allows an extended form of Crowder’s model to be considered, and provides more reliable measures of precision for parameter estimates. The results obtained lead to an improved understand...

Carbon nanotubes (CNTs) are excellent candidates for a new generation of high-strength, high-stiffness materials due to their low density, high aspect ratio and intrinsically superior mechanical properties. The present study investigates the feasibility of reinforcing conventional fibre/matrix composites by grafting CNTs onto the fibre surface. The approach is to exploit the CNT performance to ...

The complete relationship between the pullout load and the displacement of a fibre when it pulls out of the matrix serves as an important parameter in the design of composite materials. Many analytical models for the prediction of the behaviour of composite materials are based on the assumption of a constant friction load between the fibre and the matrix, regardless of the displacement of the f...

This paper presents an overview of the research performed to date by a Swedish interdisciplinary team of scientists striving to develop multifunctional composite materials for storage of electric energy in mechanical load paths. To realise structural batteries from polymer composites, research pursued on carbon fibres for use as negative electrode in the battery as well as on polymer electrolyt...

Today, automobile and aircraft industry uses more and more robust and light-weight parts made of carbon fibres. To achieve high structural properties the carbon fibre mats are stitched in the preforming process using a sewing robot. The goal of this work is to develop an edge tracking system that continuously follows the seams. To work with the black and reflective carbon fibres a laser-scan se...

In this paper the microstructure and mechanical properties of two different Cf/ZrB2-SiC composites reinforced with continuous PyC coated PAN-derived fibres or uncoated pitch-derived were compared. Pitch-derived carbon showed a lower degree reaction matrix phase during sintering compared to PyC/PAN-derived fibres. The reason lies in carbon. presence coating for was found be essential limit at fi...

Transmission electron microscopy observations most frequently form a basis for estimating asbestos fibre concentration in the environment and in buildings with asbestos-containing materials. Sampled fibres can be transferred to microscope grids by applying either a direct [ISO (1995) Draft International ISO/DIS 10312. Ambient air. Determination of asbestos fibres. Direct transfer transmission e...

BACKGROUND Over the past 30-40 years, various carbon implant materials have become more interesting, because they are well accepted by the biological environment. The traditional carbon-based polymers give rise to many complications. The polymer complication may be eliminated through carbon fibres bound by pyrocarbon (carbon/carbon). The aim of this study is to present the long-term clinical re...