Publication result detail

Machinability and properties of zirconia ceramics prepared by gelcasting method

KAŠTYL, J.; CHLUP, Z.; ŠŤASTNÝ, P.; TRUNEC, M.

Original Title

Machinability and properties of zirconia ceramics prepared by gelcasting method

English Title

Machinability and properties of zirconia ceramics prepared by gelcasting method

Type

WoS Article

Original Abstract

The machinability of newly developed zirconia ceramics for computer numerically controlled milling (CNC) was investigated. The zirconia blanks were prepared by the gelcasting method and tested in the green and two pre-sintered states. All blanks exhibited uniform sintering shrinkage in all directions. The blanks were investigated from the viewpoint of surface milling roughness, quality of milled edges and sharp tips, and machinability of thin structures. The best milling results were obtained for the blanks pre-sintered at 900?C/1?h. Mechanical properties of zirconia blanks, such as biaxial flexural strength, microhardness, indentation elastic modulus, and fracture toughness were determined in the green and pre-sintered states (900 and 1100?C/1?h) and the correlation with the milling results was discussed. The biaxial strength tests of sintered discs showed the advantage of optimised surface milling over conventional polishing.

English abstract

The machinability of newly developed zirconia ceramics for computer numerically controlled milling (CNC) was investigated. The zirconia blanks were prepared by the gelcasting method and tested in the green and two pre-sintered states. All blanks exhibited uniform sintering shrinkage in all directions. The blanks were investigated from the viewpoint of surface milling roughness, quality of milled edges and sharp tips, and machinability of thin structures. The best milling results were obtained for the blanks pre-sintered at 900?C/1?h. Mechanical properties of zirconia blanks, such as biaxial flexural strength, microhardness, indentation elastic modulus, and fracture toughness were determined in the green and pre-sintered states (900 and 1100?C/1?h) and the correlation with the milling results was discussed. The biaxial strength tests of sintered discs showed the advantage of optimised surface milling over conventional polishing.

Keywords

Zirconia; gelcasting; pre-sintering; machinability; CNC milling; mechanical properties

Key words in English

Zirconia; gelcasting; pre-sintering; machinability; CNC milling; mechanical properties

Authors

KAŠTYL, J.; CHLUP, Z.; ŠŤASTNÝ, P.; TRUNEC, M.

RIV year

2020

Released

17.08.2020

Publisher

TAYLOR & FRANCIS LTD

Location

ABINGDON

ISBN

1743-6761

Periodical

Advances in Applied Ceramics

Volume

119

Number

5-6

State

United Kingdom of Great Britain and Northern Ireland

Pages from

252

Pages to

260

Pages count

9

URL

https://www.tandfonline.com/doi/full/10.1080/17436753.2019.1675402

Full text in the Digital Library

http://hdl.handle.net/11012/181089

BibTex

@article{BUT159445,
  author="Jaroslav {Kaštyl} and Zdeněk {Chlup} and Přemysl {Šťastný} and Martin {Trunec}",
  title="Machinability and properties of zirconia ceramics prepared by gelcasting method",
  journal="Advances in Applied Ceramics",
  year="2020",
  volume="119",
  number="5-6",
  pages="252--260",
  doi="10.1080/17436753.2019.1675402",
  issn="1743-6753",
  url="https://www.tandfonline.com/doi/full/10.1080/17436753.2019.1675402"
}

Documents

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