Detail publikačního výsledku

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

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

Originální název

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

Anglický název

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

Druh

Článek Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

EPD; mechanical properties; composite; micro-fibres

Klíčová slova v angličtině

EPD; mechanical properties; composite; micro-fibres

Autoři

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

Rok RIV

2016

Vydáno

01.07.2015

Nakladatel

Trans Tech Publications

Místo

Switzerland

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

654

Číslo

1

Stát

Švýcarská konfederace

Strany od

53

Strany do

57

Strany počet

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"
}