Characterisation of Carbon Fibre Kaolin Matrix Composites

S. Papargyri; D.N. Tsipas; A. Botis; X. Spiliotis; A. Papargyris

doi:10.4028/www.scientific.net/AST.45.1450

Paper Titles

Effects of Magnetic Powder Loading on Mechanical Properties and Magnetic Properties of Natural Rubber
p.1423

Attainment and Characterization of the Thermosetting Polymer Loaded with Barite to be Used in the Manufacture of Isolating Plates to Bar the X-Ray Radiation
p.1429

Evaluation of Mechanical Properties and Comprehensive Modeling of CMC with Stiff and Weak Matrices
p.1435

Fatigue and Creep Behaviour of a SiC_f/SiC Composite for Nuclear Fusion Reactor Applications
p.1444

Characterisation of Carbon Fibre Kaolin Matrix Composites
p.1450

Structure and Properties of Heterophase Nanostructured Ceramics
p.1456

Impact Testing on Al₂O₃ and Al₂O₃/ZrO₂ Laminated Composites
p.1462

Percolation Analysis of Electrical Conductivity and Mechanical Properties for CNT-Dispersed Y-TZP Nanocomposites
p.1469

Layered Interphases in Ceramic Matrix Composites and Relation with Interfacial Behaviour
p.1475

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 45Characterisation of Carbon Fibre Kaolin Matrix...

Characterisation of Carbon Fibre Kaolin Matrix Composites

Abstract:

Although structural kaolin based ceramics are attractive and useful materials, having good mechanical characteristics, low density, good corrosion and high temperature resistance, their use is restricted by their brittle behaviour. In order to improve their properties and mainly strength, toughness and high temperature performance, fibre composite ceramics have been developed. In the present work a series of kaolin-short random dispersed Grafil carbon fibre composites were produced and sintered in an inert atmosphere of Argon at 1000oC and 1300oC and characterised using various techniques. XRD analysis of the kaolin matrix at 1000oC showed that the crystalline phases were decomposed without the formation of mullite a fact which also reconfirmed by SEM examination. However at 1300oC mullite formation was well evidenced. XRD analysis of the fibres in “as received” showed that they have graphite structure which was also retained, as SEM examination revealed, after sintering. Examination of the Grafil fibres showed that they were quite uniform in length and diameter and retained their integrity after sintering at the examined temperatures. Examination the fractured composite surfaces showed only a weak bond between fibres and matrix and at the pull out areas the fibres were replicated in the matrix.