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THE MEASUREMENT OFCRYSTALLITE SIZE AND LATTICE DISTORTION FOR α-Fe_2O_3 WANG MEISHENG

This paper reports the measuring principle and results of crystallite size andlattice distortion for α-Fe_2O_3 with the broadening method.The measurement ismade with a Y-2 X-ray diffractometer. The quartz is taken as the standard matter.Three different sizes of α-Fe_2O_3 are measured.Results show that the spectumlines broaden and lattice distortions increase as the crystallite size decreases.