Publication detail

Ceramic core–shell composites with modified mechanical properties prepared by thermoplastic co-extrusion

KAŠTYL, J. CHLUP, Z. CLEMENS, F. TRUNEC, M.

Original Title

Ceramic core–shell composites with modified mechanical properties prepared by thermoplastic co-extrusion

Type

journal article in Web of Science

Language

English

Original Abstract

Bi-layer rods of core–shell geometry were prepared by thermoplastic co-extrusion of assembled feedrods. The zirconia-toughened alumina was used for the tough core and alumina for the hard shell surrounding the core. Core–shell rods with three different shell thicknesses were successfully co-extruded and regular interface between the core and the shell was achieved. The benefits of using the shell feedstock with a lower viscosity compared to the viscosity of the core feedstock were described and discussed in detail. The perfect joining between the core and the shell components achieved during co-extrusion was retained also after binder removal and sintering. The component interface was sharp and relatively smooth. The core–shell structure resulted in a modification of the mechanical properties of bi-layer rods in comparison with monolithic rods. Flexural strength tests of monolithic and bi-layer sintered rods were performed and the advantage of the core–shell concept was presented and explained.

Keywords

Alumina; Zirconia toughened alumina; Co-extrusion; Composite; Mechanical properties

Authors

KAŠTYL, J.; CHLUP, Z.; CLEMENS, F.; TRUNEC, M.

RIV year

2015

Released

1. 9. 2015

Publisher

ELSEVIER SCI LTD

Location

THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND

ISBN

0955-2219

Periodical

Journal of the European Ceramic Society

Year of study

35

Number

10

State

United Kingdom of Great Britain and Northern Ireland

Pages from

2873

Pages to

2881

Pages count

9

BibTex

@article{BUT114740,
  author="Jaroslav {Kaštyl} and Zdeněk {Chlup} and Frank {Clemens} and Martin {Trunec}",
  title="Ceramic core–shell composites with modified mechanical properties prepared by thermoplastic co-extrusion",
  journal="Journal of the European Ceramic Society",
  year="2015",
  volume="35",
  number="10",
  pages="2873--2881",
  doi="10.1016/j.jeurceramsoc.2015.04.012",
  issn="0955-2219"
}