STUDY OF ANATASE-TO-RUTILE PHASE TRANSFORMATION IN MILLED AND UNMILLED SAMPLES

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SOTOUDEH N.; SAEIDI ALI; SHAFIEI A.; WELHAM N.J.

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Paper Information

Journal: ESTEGHLAL Year:2006 | Volume:25 | Issue:1 Page(s): 207-216

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Information Journal Paper

Title

STUDY OF ANATASE-TO-RUTILE PHASE TRANSFORMATION IN MILLED AND UNMILLED SAMPLES

Author(s)

SOTOUDEH N. | SAEIDI ALI | SHAFIEI A. | WELHAM N.J. | Issue Writer Certificate

Keywords

BALL MILLINGQ3

ANATASEQ2

TRANSFORMATIONQ2

TITANIUM DIOXIDEQ2

RUTILEQ3

SRILANKITEQ3

Abstract

Anatase-to-rutile phase TRANSFORMATION was studied in milled and unmilled samples. BALL MILLING was carried out in two types of ball mills, planetary and tumbler, with a ball-to-powder ratio of 40:1 over 2-48 hours. First, the unmilled samples were heated in the furnace at various temperatures for different periods of time. The results revealed that the ANATASE-to-rutile TRANSFORMATION completed at 980 oC after 48 hours. The rate of TRANSFORMATION in milled samples was greatly higher than that of unmilled ones. Activation energy in unmilled samples was about 440 kj/mol. The rate of TRANSFORMATION in the planetary ball mill was higher than that in tumbler mill. In the former, TRANSFORMATION almost finished after 16 hours of milling while in the lattar, it did not finish even after 48 hours. XRD results revealed that the TRANSFORMATION proceeds through an intermediate SRILANKITE phase in all milled samples. However, SRILANKITE was not observed in the unmilled samples.

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APA: Copy

SOTOUDEH, N., SAEIDI, ALI, SHAFIEI, A., & WELHAM, N.J.. (2006). STUDY OF ANATASE-TO-RUTILE PHASE TRANSFORMATION IN MILLED AND UNMILLED SAMPLES. ESTEGHLAL, 25(1), 207-216. SID. https://sid.ir/paper/5919/en

Vancouver: Copy

SOTOUDEH N., SAEIDI ALI, SHAFIEI A., WELHAM N.J.. STUDY OF ANATASE-TO-RUTILE PHASE TRANSFORMATION IN MILLED AND UNMILLED SAMPLES. ESTEGHLAL[Internet]. 2006;25(1):207-216. Available from: https://sid.ir/paper/5919/en

IEEE: Copy

N. SOTOUDEH, ALI SAEIDI, A. SHAFIEI, and N.J. WELHAM, “STUDY OF ANATASE-TO-RUTILE PHASE TRANSFORMATION IN MILLED AND UNMILLED SAMPLES,” ESTEGHLAL, vol. 25, no. 1, pp. 207–216, 2006, [Online]. Available: https://sid.ir/paper/5919/en

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