TY - GEN
T1 - Evolution of coal fly ash for the utilization in ceramic material
AU - Erol, Melek
AU - Küçükbayrak, Sadriye
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
KW - Ceramic
KW - Sintering
KW - Thermal power plant fly ash
UR - http://www.scopus.com/inward/record.url?scp=84884325808&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84884325808
SN - 9781617823848
T3 - 11th International Conference and Exhibition of the European Ceramic Society 2009
SP - 856
EP - 860
BT - 11th International Conference and Exhibition of the European Ceramic Society 2009
T2 - 11th International Conference and Exhibition of the European Ceramic Society 2009
Y2 - 21 June 2009 through 25 June 2009
ER -