Transformation of Goethite to Hematite Nanocrystallines by High Energy Ball Milling

<table>Magnetic hysteresis loop of the samples as received and milled for 40 h. The inset shows comparison between the sample as received which is paramagnetic and the one milled for 40 h.</table>

Advances in Materials Science and Engineering

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Figure 5

Figure 5: Transformation of Goethite to Hematite Nanocrystallines by High Energy Ball Milling 