Notice of RetractionSynthesizing Cordierite from High-Alumina Fly Ash and Talc Powder

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

Synthesizing of cordierite from fly ash was conducted with a good industrial prospect. Whereas this technique is restricted for higher cost derived from adding Al₂O₃ to the common fly ash in order to increase a deficient alumina composition to stoichiometric cordierite. In this paper, by using the high-alumina fly ash collected from the Jungar power plant and talc powder, the cordierite was synthesized directly. The physical properties of cordierite samples were measured using Archimedes´ method, and the phase of cordierite samples was analyzed by XRD and the microstructure of the cordierite samples was observed by SEM. The results showed that based on the proportion of the fly ash and talc powders designated as 1.6288:1 (the as received fly ash to talc powder) and 1.515:1 (the treated fly ash to talc powder) respectively, the cordierite samples yielded from the mixtures were manufactured at 1350°C~1370°C. The physical properties of the sintered cordierite could satisfy the quality requirements of cordierite, and the major crystalline phases in the sintered samples were α-cordierite (indialite) with almost no glassy matters.