Evolution of coal fly ash for the utilization in ceramic material

Melek Erol*, Sadriye Küçükbayrak

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

A thermal power plant fly ash was used to produce aceramic material by sintering technique. Coal fly ashsamples were sintered at the temperature range of 1273-1348 K for 2 hours to investigate the effect of firingtemperature on microstructure and physical propertiesof the produced materials. X-ray diffraction (XRD)analysis revealed that quartz (SiO2), mullite (Al6Si2O13),anorthite (CaAl2Si2O8) and enstatite ((Mg,Fe)SiO3)phases detected in the fly ash sample disappeared;wollastonite (CaSiO3) and gehlenite (Ca2Al2SiO7)phases occurred in the ceramic samples. Scanningelectron microscopy (SEM) investigations wereconducted on the produced ceramic materials toinvestigate the microstructural evolution of the samples.The dentritic dense crystalline structure was observed inthe produced samples. Density and hardness values ofthe produced samples increased significantly withincreasing sintering temperature while water adsorptionand porosity values decreased. The overall resultsshowed that it is possible to produce ceramic materialsfrom the coal fly ash with high density, low porosityand water adsorption values.

Original languageEnglish
Title of host publication11th International Conference and Exhibition of the European Ceramic Society 2009
Pages856-860
Number of pages5
Publication statusPublished - 2009
Event11th International Conference and Exhibition of the European Ceramic Society 2009 - Krakow, Poland
Duration: 21 Jun 200925 Jun 2009

Publication series

Name11th International Conference and Exhibition of the European Ceramic Society 2009
Volume2

Conference

Conference11th International Conference and Exhibition of the European Ceramic Society 2009
Country/TerritoryPoland
CityKrakow
Period21/06/0925/06/09

Keywords

  • Ceramic
  • Sintering
  • Thermal power plant fly ash

Fingerprint

Dive into the research topics of 'Evolution of coal fly ash for the utilization in ceramic material'. Together they form a unique fingerprint.

Cite this