Publication result detail

Whiteware Bodies without Kaolin

SOKOLÁŘ, R.; VODOVÁ, L.

Original Title

Whiteware Bodies without Kaolin

English Title

Whiteware Bodies without Kaolin

Type

Scopus Article

Original Abstract

Whiteware is a traditional ceramic material that has been manufactured for centuries from a mixture of kaolin + quartz + feldspar. Replacement of kaolin by calcium aluminate cement can increase the strength of green bodies, reduce the coefficient of linear thermal expansion and enhance the whiteness of fired products. A negative aspect of using calcium aluminate cement in ceramic bodies is reduced sintering activity and therefore, need for a higher firing temperature. Sodium hexametaphosphate admixture was also found to be very suitable for creation of calcium aluminate cement-based whiteware bodies with low porosity after firing. Use of this deflocculant increased the modulus of rupture (MOR) and bulk density of dried green bodies. Sodium hexametaphosphate also decreases the water content needed to achieve optimal viscosity for slip casting.

English abstract

Whiteware is a traditional ceramic material that has been manufactured for centuries from a mixture of kaolin + quartz + feldspar. Replacement of kaolin by calcium aluminate cement can increase the strength of green bodies, reduce the coefficient of linear thermal expansion and enhance the whiteness of fired products. A negative aspect of using calcium aluminate cement in ceramic bodies is reduced sintering activity and therefore, need for a higher firing temperature. Sodium hexametaphosphate admixture was also found to be very suitable for creation of calcium aluminate cement-based whiteware bodies with low porosity after firing. Use of this deflocculant increased the modulus of rupture (MOR) and bulk density of dried green bodies. Sodium hexametaphosphate also decreases the water content needed to achieve optimal viscosity for slip casting.

Keywords

whiteware, calcium aluminate cement, kaolin, sodium hexametaphosphate

Key words in English

whiteware, calcium aluminate cement, kaolin, sodium hexametaphosphate

Authors

SOKOLÁŘ, R.; VODOVÁ, L.

RIV year

2015

Released

11.02.2014

ISBN

0020-5214

Periodical

INTERCERAM

Volume

63

Number

1-2

State

Federal Republic of Germany

Pages from

19

Pages to

21

Pages count

3

BibTex

@article{BUT106914,
  author="Radomír {Sokolář} and Lucie {Keršnerová}",
  title="Whiteware Bodies without Kaolin",
  journal="INTERCERAM",
  year="2014",
  volume="63",
  number="1-2",
  pages="19--21",
  issn="0020-5214"
}