Project Description

Tests on raw materials

TESTS ON CERAMIC RAW MATERIALS



Chemical analysis, vitrification, mixing behaviour

Contact person: Adelia Albertazzi – albertazzi@centroceramico.it – Direct phone number: +39 051 0250160

Chemical analysis by ICP-OES UNI EN ISO 21587-1 and UNI EN ISO 21587-3

  • Sample attack (clays and equivalent) UNI EN ISO 21587-1
  • Sample attack (glazes, refractory materials and equivalent) UNI EN ISO 21587-1
  • Single chemical determinations
  • Determination As and Hg – ICP-OES + hydrides kit
  • Determination of Cr>sup>VI+ ISO 11083
  • Cl: extraction
  • F melting and distillation
  • Sulphates – Determination by ICP-OES spectrometry – EN ISO 10304-1, EN ISO 10304-2
  • Sulphates – gravimetric determination
  • Total sulphur (MD 13/09/1999 “Official Methods of chemical analysis of the soil”)
  • Total organic substances (MD 13/09/1999 “Official Methods of chemical analysis of the soil”)
  • Total CaCO3 (MD 13/09/1999 “Official Methods of chemical analysis of the soil”)
  • Moisture – gravimetric determination (MD 13/09/1999 “Official Methods of chemical analysis of the soil”)

Chemical analysis by ICP-OES UNI EN ISO 21587-1 and UNI EN ISO 21587-3

  • Clays and equivalent (9 determinations) P.F., SiO2, Al2O3, TiO2, Fe2O3, CaO, MgO, K2O, Na2O
  • Refractory materials and equivalent (9 determinations)
  • Respirable Crystalline Silica: evaluation of the size weighted relevant fine fraction content in powders (SWeRFcs Method)

Vitrification

  • Gradient kiln firing

Mixing behaviour

  • Atterberg plasticity
  • Pfefferkorn plasticity
  • Plasticity – Methylene blue method
  • Drying behaviour
  • Grinding in water



Rheological characterisation

Contact person: Giuliana Bonvicini – bonvicini@centroceramico.it – Direct phone number: +39 051 0250161

  • Complete rheological characterisation
  • Viscosity measurement by flow curve



Colour measurements

Contact person: Barbara Mazzanti – mazzanti@centroceramico.it – Direct phone number: +39 051 0250195

Colour measurements

  • Colour coordinates



Mineralogical and microstructural characterisation

Contact person: Elisa Rambaldi – rambaldi@centroceramico.it – Direct phone number: +39 051 0250119

XRD analysis

  • XRD analysis (with or without interpretation)
  • Quantitative XRD

Microscopic analysis

  • SEM observation
  • EDS Microanalysis
  • Stereomicroscope observation
  • Optical microscope observation
  • Images
  • Quantitative microscopic analysis (porosity and pore/grain size distribution, etc.
  • Petrographic analysis (thin sections)



Thermal analysis, density, granulometry, specific surface

Contact person: Giovanni Ridolfi – ridolfi@centroceramico.it – Direct phone number: +39 051 0250192

Thermal analysis

  • Heating microscope
  • DTA up to 1200 °C
  • DTA up to 1200 °C and back
  • DTA up to 1500 °C
  • DTA up to 1500 °C and back
  • TG
  • TG + DTA and back
  • TG + DTA

Density

  • Determination of absolute density of ceramic powders UNI EN ISO 18753
  • Determination of the density by helium pycnometer

Dilatometry

  • Thermo dilatometric analysis (green), heating up to 1000 °C and cooling
  • Thermo dilatometric analysis (green) heating up to 1200 °C and cooling
  • Thermo dilatometric analysis, heating up to 1500 °C
  • Thermo dilatometric analysis, heating up to 1500 °C and cooling
  • Linear thermal expansion ASTM E 228

Granulometry

  • Laser granulometry (clays or equivalent, other materials…))
  • Sieve

Mercury porosimetry

Specific surface

  • BET – specific surface area ISO 9277:2010
  • BET – specific surface area ASTM C 1069
  • BET – specific surface area – not clayish materials