Zeolite-feldspar epiclastic rocks as flux in ceramic tile manufacturing (Articolo in rivista)

Type
Label
  • Zeolite-feldspar epiclastic rocks as flux in ceramic tile manufacturing (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • de' Gennaro R., Dondi M., Cappelletti P., Cerri G., de’ Gennaro M., Guarini G., Langella A., Parlato L., Zanelli C. (2007)
    Zeolite-feldspar epiclastic rocks as flux in ceramic tile manufacturing
    in Microporous and mesoporous materials (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • de' Gennaro R., Dondi M., Cappelletti P., Cerri G., de’ Gennaro M., Guarini G., Langella A., Parlato L., Zanelli C. (literal)
Pagina inizio
  • 273 (literal)
Pagina fine
  • 278 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 105 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Centro Interdipartimentale di Servizio C.I.S.A.G., Universita` Federico II, via Mezzocannone 8, 80134 Napoli, Italy Istituto di Scienza e Tecnologia dei Materiali Ceramici (CNR-ISTEC), via Granarolo 64, 48018 Faenza, Italy Dipartimento di Scienze della Terra, Universita` Federico II, via Mezzocannone 8, 80134 Napoli, Italy Istituto di Scienze Geologico-Mineralogiche, Corso Angioy 10, 07100 Universita` di Sassari, Italy Dipartimento di Studi Geologici e Ambientali, Via Port'Arsa 11, 82100 Universita` del Sannio, Benevento, Italy (literal)
Titolo
  • Zeolite-feldspar epiclastic rocks as flux in ceramic tile manufacturing (literal)
Abstract
  • Low-cost, naturally-occurring mixtures of feldspar and zeolite occurring in epiclastic rocks are promising substitutes for conventional quartz-feldspathic fluxes in ceramic bodies, since their fusibility and low hardness are expected to improve both grinding and sintering. Three epiclastic outcrops, with a different zeolite-to-feldspar ratio, were characterized (XRPD, fusibility) and tested in porcelain stoneware bodies; their behaviour during processing was appraised and compared with that of a reference. The addition of an epiclastic rock (20 wt.%), replacing rhyolite and aplite fluxes, brought about some significant advantages, mainly represented by better grindability, lower firing temperature with improved mechanical strength and lower porosity. Disadvantages concern increased slip viscosity, worse powder compressibility, resulting in larger firing shrinkage, and a darker colour of the tiles due to relatively high amounts of iron oxide. (literal)
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