Mechanical Properties of Carbon Fibre–Reinforced Al and Mg under Various Manufacturing Conditions

Schulz, P. A.; Kaufmann, Heinz; Capel, H.

doi:10.1002/3527606165.ch19

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several authors, except changes in morphology (Ref 14, 15) describe a change in the properties of carbon fibers after different thermal treatments, i.e., removal of sizing in high vacuum, high pure air, or argon atmosphere (Ref [16][17][18] and also after the graphitization processes in the presence of metallic coatings (Ref 19,20). But such laboratory conditions are often much different compared to industrial practice or at least conditions are fitted to actually utilized processing technologies, e.g., gas pressure infiltration.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties, Surface Structure, and Morphology of Carbon Fibers Pre-heated for Liquid Aluminum Infiltration

Kachold

Kozera

Singer

et al. 2016

J. of Materi Eng and Perform

View full text Add to dashboard Cite

To efficiently produce carbon fiber-reinforced aluminum on a large scale, we developed a special highpressure die casting process. Pre-heating of the fibers is crucial for successful infiltration. In this paper, the influence of heating carried out in industrial conditions on the mechanical properties of the fibers was investigated. Therefore, polyacrylonitrile-based high-tensile carbon fiber textiles were heated by infrared emitters in an argon-rich atmosphere to temperatures between 450 and 1400°C. Single fiber tensile tests revealed a decrease in tensile strength and strain at fracture. YoungÕs modulus was not affected. Scanning electron microscopy identified cavities on the fiber surface as the reason for the decrease in mechanical properties. They were caused by the attack of atmospheric oxygen. The atomic structure of the fibers did not change at any temperature, as x-ray diffraction confirmed. Based on these data, the pre-heating for the casting process can be optimized.

show abstract