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Fabrication of Porous Anorthite Ceramic Insulation Using Solid Wastes.

Mia OmeraševićVladimir PavkovMilena RosićMarija EgerićSnežana S S NenadovićDušan BučevacNebojša Potkonjak
Published in: Materials (Basel, Switzerland) (2024)
Porous anorthite (CaAl 2 Si 2 O 8 ) ceramics, suitable for thermal insulation in buildings, were obtained using waste seashells as a source of CaO, kaolin as a source of Al 2 O 3 and SiO 2 and banana peel as a pore former. Changing the volume of banana peel as well as the processing temperature was found to be an effective approach to control the thermo-mechanical properties of the obtained anorthite ceramics. The sintering of powder compacts containing up to 30 wt% banana peel at temperatures ranging from 1100 to 1200 °C resulted in anorthite ceramics possessing up to 45% open porosity, a compressive strength between 13 and 92 MPa, a bulk density between 1.87 and 2.62 g/cm 3 and thermal conductivity between 0.097 and 3.5 W/mK. It was shown that waste materials such as seashells and banana peel can be used to obtain cost-effective thermal insulation in buildings.
Keyphrases
  • sewage sludge
  • heavy metals
  • tissue engineering
  • metal organic framework
  • highly efficient
  • room temperature
  • life cycle
  • anaerobic digestion
  • ionic liquid