http://www.cnr.it/ontology/cnr/individuo/prodotto/ID302076
Flux particle size and composition effects on the evolution of sanitaryware vitreous body (Comunicazione a convegno)
- Type
- Label
- Flux particle size and composition effects on the evolution of sanitaryware vitreous body (Comunicazione a convegno) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1180/minmag.2013.077.5.2 (literal)
- Alternative label
Bernasconi A.
Marinoni N.
Diella V.
Pavese A.
Francescon F.
Young K. (2013)
Flux particle size and composition effects on the evolution of sanitaryware vitreous body
in Goldschmidt 2013 Conference, Firenze, August, 25/30
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Bernasconi A.
Marinoni N.
Diella V.
Pavese A.
Francescon F.
Young K. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
- Goldschmidt2013 Conference Abstracts (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Earth Science Department, University of Milan, Italy
Earth Science Department, University of Milan, Italy
National Research Council, IDPA, Section of Milan, Italy
Earth Science Department, University of Milan, Italy
Ideal Standard International, Ceramic Process Technology, Trichiana (BL), Italy
Sibelco, Group Central Laboratory, Moneystone Quarry,Whiston, United Kingdom (literal)
- Titolo
- Flux particle size and composition effects on the evolution of sanitaryware vitreous body (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume
- www.minersoc.org (literal)
- Abstract
- Experimental Procedure
A combination of three industrial flux compositions
(sodium fedspar > 67 wt.%, potassium feldspar > 69 wt.%
and a 1:1 mix of them) and two particle size distributions
(d50 ? 45 and 75 ?m) have been used to prepare sanitaryware
slips (flux amount about 25 wt.%). Samples have been
fired up to 1200 °C, and then characterized in terms of water
absorption, density, X-ray diffraction (at ambient and HT
conditions) and micro-structure occurrence by Scanning
Electron Microscopy.
Results
Despite of the small differences in the samples, some
trends have been observed. Water absorption and
interconnected porosity (obtained by density measurements)
are minimized if sodium feldspar is used, suggesting a better
densification, in agreement with [1]. The same effect is
achieved by decreasing the flux particle size, which leads to a
higher reactivity of the starting slip, in keeping with [2]. The
application of RIR-Rietveld method [3] to powder diffraction
patterns shows that also differences in phase composition are
present: in particular, the highest glass content has been
observed if the smallest flux particle size is used, in
combination with a sodium bearing feldspar. Moreover,
observations from HT-powder diffraction experiments
(thermal range 900-1100°C) do not yield significant
differences in the feldspar thermal decomposition as a
function of flux composition and particle size.
References
[1] Das & Dana (2003) Termochimica Acta, 406, 199-206. [2]
Alves, Melchiades & Boschi (2012) Journal of European
Ceramic Society, 32, 2095-2102. [3] Gualtieri (2000) Journal
of Applied Crystallography, 33, 267-278. (literal)
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