Publication result detail

Low Energy Contrasts of a Metal Matrix Composite in SEM

FRANK, L., MATSUDA, K., HRNČIŘÍK, P., MULLEROVÁ, I.

Original Title

Low Energy Contrasts of a Metal Matrix Composite in SEM

English Title

Low Energy Contrasts of a Metal Matrix Composite in SEM

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

Ceramic/Al alloys composite materials, as an important example of the metal matrix composites (MMC), are investigated because of intended improvement to mechanical properties of the age-hardenable aluminium alloys. Especially Al2O3 has its history as regards the MMC applications. Owing to its lower weight, higher melting point and larger Young modulus in comparison with Al alloys, it is expected to enhance the thermal resistivity and the strength of the composite. One-dimensional MMC with long fibres of alumina, although really strong along the texture direction, were found difficult to machine and not suitable for extruding, bending, etc. The new approach of 3D MMC faces problems with homogeneity of the particle distribution. The technology consisting in preparation of a precursor of ceramic fibres or particles, which is then poured by the molten metal, leads to enhanced contents (20 to 30 volume %) of particles larger than 1 mm and an inhomogeneous particle distribution. In this case, the material machineability is not acceptable.

English abstract

Ceramic/Al alloys composite materials, as an important example of the metal matrix composites (MMC), are investigated because of intended improvement to mechanical properties of the age-hardenable aluminium alloys. Especially Al2O3 has its history as regards the MMC applications. Owing to its lower weight, higher melting point and larger Young modulus in comparison with Al alloys, it is expected to enhance the thermal resistivity and the strength of the composite. One-dimensional MMC with long fibres of alumina, although really strong along the texture direction, were found difficult to machine and not suitable for extruding, bending, etc. The new approach of 3D MMC faces problems with homogeneity of the particle distribution. The technology consisting in preparation of a precursor of ceramic fibres or particles, which is then poured by the molten metal, leads to enhanced contents (20 to 30 volume %) of particles larger than 1 mm and an inhomogeneous particle distribution. In this case, the material machineability is not acceptable.

Key words in English

Composite materials, Low electron microscopy, SLEEM

Authors

FRANK, L., MATSUDA, K., HRNČIŘÍK, P., MULLEROVÁ, I.

Released

01.01.2003

Publisher

Cambridge University Press

Book

Microscopy and Microanalysis

Volume

9

Number

3

Pages from

328

Pages count

2

BibTex

@article{BUT41576,
  author="Luděk {Frank} and Kenji {Matsuda} and Petr {Hrnčiřík} and Ilona {Müllerová}",
  title="Low Energy Contrasts of a Metal Matrix Composite in SEM",
  year="2003",
  volume="9",
  number="3",
  pages="2"
}