Publication detail

Micro fibres containing laminates prepared by EPD: microstructure and fracture behaviour

CHLUP, Z. HADRABA, H. DRDLÍK, D. DLOUHÝ, I.

Original Title

Micro fibres containing laminates prepared by EPD: microstructure and fracture behaviour

Type

journal article in Scopus

Language

English

Original Abstract

Recently it was possible to prepare tailored laminates with perfect and strong interface of layers with precise thickness management. Tailoring of ceramic laminates to obtain optimal mechanical properties with enhanced fracture resistance is possible when predictions based on numerical calculations are employed. Extraordinary mechanical properties were achieved via high internal stresses development during material processing. The aim of this investigation can be seen in two directions. The enhanced crack free green bodies through incorporating small volume fraction of micro-fibres to the powders were prepared. Additionally, control of the crack propagation by incorporated directionally oriented micro-fibres both in the volume and in individual layers. In this contribution both alumina and zirconia micro-fibres were used to help eliminate drying defects in the green body stage before sintering. The co-deposition of ceramic micro-fibres and powder led to the preparation of microstructures having unique orthogonal fracture properties. Developed laminate with thin layers created by zirconia micro-fibres in the alumina matrix seems to be the most promising. This type of material exhibited potential of the crack trapping and deflection even when very small amount of micro-fibres was used.

Keywords

EPD; mechanical properties; composite; micro-fibres

Authors

CHLUP, Z.; HADRABA, H.; DRDLÍK, D.; DLOUHÝ, I.

RIV year

2015

Released

1. 7. 2015

Publisher

Trans Tech Publications

Location

Switzerland

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Year of study

654

Number

1

State

Swiss Confederation

Pages from

53

Pages to

57

Pages count

5

URL

http://www.scientific.net/KEM.654.53

BibTex

@article{BUT115997,
  author="Zdeněk {Chlup} and Hynek {Hadraba} and Daniel {Drdlík} and Ivo {Dlouhý}",
  title="Micro fibres containing laminates prepared by EPD: microstructure and fracture behaviour",
  journal="Key Engineering Materials (print)",
  year="2015",
  volume="654",
  number="1",
  pages="53--57",
  doi="10.4028/www.scientific.net/KEM.654.53",
  issn="1013-9826",
  url="http://www.scientific.net/KEM.654.53"
}