Microstructural Studies of Materials DD1 and KT2 By X-Ray Diffraction

A Lakel


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Abstract


In this work, we have studied two Kaolin .kaolin DD1 which consists of two main phases (kaolinite and Halloysite) and Tamazert kaolin .kaolin KT2 whose main constituents are kaolinite, quartz and mica. Our choice was set on the component that is Kaolinite because of the existence of the latter in both kaolins. A correction of Lorentz-Polarization was carried out prior to the diffraction data, which has been achieved using LWL program dome. The true profile was extracted by this program. The methods used for the micro structural analysis of the present in the two Kaolins are the Warren - Averbach and the Williamson – Hall methods Scherrer's relationship has been applied in cases where the compound is devoid of strains.
The study revealed that the kaolin Kaolinite DD1 is devoid of micro constraints. Which similar analysis has shown that the Kaolinite in KT2 incorporates the strains. This was confirmed by the Williamson - Hall method as well as Fourier analysis. The evaluation of strains in the Kaolinite of KT2 has been dome the method of Warren - Averbach and Williamson – Hall diagram. The average value of this constraint found by the first method us 0.15 and 0.21 by the second method gave. The average size of crystallites of the Kaolinite in DD1 was found between 29 Å and 230 Å.
by the method of Warren - Averbach and about 118 Å by the method of Williamson - Hall. Range the second Kaolinite the Kaolinite KT2, the size obtained was respectively 98 Å and 130 Å using to by methods. The study of the size distribution showed that the dominant size of Kaolinite in DD1 and KT2 is about 40 Å (42%) and 58 Å (32%). respectively.

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Balzar, D. (1999). Voigt-function model in diffraction line-broadening analysis. International union of crystallography monographs on crystallography, 10, 94-126.

Ceretti, M. (2004). Apport de la diffraction des neutrons à l’analyse des contraintes internes. Habilitation à diriger des recherches, Université de Paris-Sud, Centre d’Orsay, 7-17.

Kamminga, J. D., & Seijbel, L. J. (2004). Diffraction line broadening analysis if broadening is caused by both dislocations and limited crystallite size. Journal of research of the National Institute of Standards and Technology, 109(1), 65.

Klug, H. P., & Alexander, L. E. (1974). X-ray diffraction procedures: for polycrystalline and amorphous materials. X-Ray Diffraction Procedures: For Polycrystalline and Amorphous Materials, 2nd Edition, by Harold P. Klug, Leroy E. Alexander, pp. 992. ISBN 0-471-49369-4. Wiley-VCH, May 1974., 992.

Lakel, A., Bouyoucef, A., Labii, T., Guechi, N., Guechi, I., Boubertakh, A., & Hamamda, S. (2013). Microstructural Study of Some Kaolin by Warren-Averbach and Williamson-Hall Methods. First International Conference on Renewable Energies and Nanotechnology impact on Medicine and Ecology, ICREN 2013, Algeria-Constantine, february16-17, pp.169-177.

Langford, J. I. (1978). A rapid method for analysing the breadths of diffraction and spectral lines using the Voigt function. Journal of Applied Crystallography, 11(1), 10-14.

Langford, J. I., Prince, E., & Stalick, J. K. (1992). Accuracy in powder diffraction II. NIST special publication, 846, 110-126.

Larson, A. C., & Von Dreele, R. B. (2000). Report LAUR 86-748. Los Alamos National Laboratory, New Mexico, USA.

Marinkovic, B., Avillez, R. R. D., Saavedra, A., & Assunção, F. C. R. (2001). A comparison between the Warren-Averbach method and alternate methods for X-ray diffraction microstructure analysis of polycrystalline specimens. Materials Research, 4(2), 71-76..

Mote, V. D., Purushotham, Y., & Dole, B. N. (2012). Williamson-Hall analysis in estimation of lattice strain in nanometer-sized ZnO particles. Journal of Theoretical and Applied Physics, 6(1), 6.

Rao, S., & Houska, C. R. (1986). X-ray particle-size broadening. Acta Crystallographica Section A: Foundations of Crystallography, 42(1), 6-13.

Rehani, B. R., Joshi, P. B., Lad, K. N., & Pratap, A. (2006). Crystallite size estimation of elemental and composite silver nano-powders using XRD principles, 44, 157-161.

Uvarov, V., & Popov, I. (2007). Metrological characterization of X-ray diffraction methods for determination of crystallite size in nano-scale materials. Materials characterization, 58(10), 883-891.

Vives, S., Gaffet, E., & Meunier, C. (2004). X-ray diffraction line profile analysis of iron ball milled powders. Materials Science and Engineering: A, 366(2), 229-238.

Vives, S., Gaffet, E., Itié, J. P., & Meunier, C. (2002). Influence des conditions de broyage sur la nanostructure et le module de compression de poudres de fer. Matériaux, 1-4

Wagner, C. N. J. (1966). Local atomic arrangements studied by X-ray diffraction. Gordon and Breach, New York, 219.

Williamson, G. K., & Hall, W. H. (1953). X-ray line broadening from filed aluminium and wolfram. Acta metallurgica, 1(1), 22-31.


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