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Microhardness studies on some alum crystals

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Abstract

Microhardness studies were carried out using four alums. The hardness of these crystals was found to be more than alkali halides but was comparable with alkaline earth nitrates. The load variation of hardness has been discussed. Hardness results on these alums have been analysed taking into account the structure. It was observed that hardness varied witha −4, wherea is the lattice constant. Preliminary results on dislocation etching are reported.

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Sangaiah, G., Kishan Rao, K. Microhardness studies on some alum crystals. Bull. Mater. Sci. 16, 397–402 (1993). https://doi.org/10.1007/BF02759553

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  • DOI: https://doi.org/10.1007/BF02759553

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