Publication detail

Fibre-matrix interface development during high temperature exposition of long fibre reinforced SiOC matrix

CHLUP, Z. CERNÝ, M. STRACHOTA, A. HALASOVÁ, M. DLOUHÝ, I.

Czech title

Vývoj rozhraní vlákno matrice u SiOC kompozitů s dlouhovláknovou výztuží během vystavení vysokým teplotám

English title

Fibre-matrix interface development during high temperature exposition of long fibre reinforced SiOC matrix

Type

journal article - other

Language

en

Original abstract

The fracture behaviour of long fibre reinforced composites is predetermined mainly by properties of fibre-matrix interface. The matrix prepared by pyrolysis of polysiloxane resin possesses ability to resist high temperatures without significant damage under oxidising atmosphere. The application is therefore limited by fibres and possible changes in the fibre matrix interface. The study of development of interface during high temperature exposition is the main aim of this contribution. Application of various techniques as FIB, GIS, TEM, XRD allowed to monitor microstructural changes in the interface of selected places without additional damage caused by preparation. Additionally, it was possible to obtain information about damage, the crack formation, caused by the heat treatment from the fracture mechanics point of view.

Czech abstract

Chování kompozitů s dlouhými vlákny je předurčen především rozhraním mezi vláknem a matricí. Matrice připravená pyrolýzou polysiloxanové pryskyřice skýtá schopnost odolat vysokým teplotám v oxidačním prostředí bez výrazného poškození. Použití je tudíž omezeno vlákny a změnami v rozhraní vlákno-matrice. Studie vývoje rozhraní za vysokých teplot je hlavním přínosem tohoto příspěvku. Použití rozličných technik jako je FIB, GIS, TEM, XRD umožnily monitorovat mikrostrukturní změny na rozhraní zvolených oblastí, aniž by došlo k dodatečnému poškození, způsobenému přípravou. Navíc bylo možné získat informaci z hlediska lomové mechaniky o poškození, vzniku trhliny, způsobeném tepelným zpracováním.

English abstract

The fracture behaviour of long fibre reinforced composites is predetermined mainly by properties of fibre-matrix interface. The matrix prepared by pyrolysis of polysiloxane resin possesses ability to resist high temperatures without significant damage under oxidising atmosphere. The application is therefore limited by fibres and possible changes in the fibre matrix interface. The study of development of interface during high temperature exposition is the main aim of this contribution. Application of various techniques as FIB, GIS, TEM, XRD allowed to monitor microstructural changes in the interface of selected places without additional damage caused by preparation. Additionally, it was possible to obtain information about damage, the crack formation, caused by the heat treatment from the fracture mechanics point of view.

Keywords in Czech

CMCs, pyrolýza, teplotní zatěžování, rozhraní

Keywords in English

CMCs, pyrolysis, heat treatment, interface

RIV year

2013

Released

29.11.2013

Location

Švýcarsko

ISSN

1662-9795

Volume

2014

Number

592-593

Pages from–to

401–404

Pages count

4

BIBTEX


@article{BUT109096,
  author="Zdeněk {Chlup} and Martin {Černý} and Adam {Strachota} and Martina {Halasová} and Ivo {Dlouhý},
  title="Fibre-matrix interface development during high temperature exposition of long fibre reinforced SiOC matrix",
  year="2013",
  volume="2014",
  number="592-593",
  month="November",
  pages="401--404",
  address="Švýcarsko",
  issn="1662-9795"
}