Effect of Various Impurities on the Hardness of NaCl Crystals

The hardness of NaCl crystal in the presence of mono, divalent and polyvalent ions were measured. Measurements were made in the indentation load range from 5 x 10‐3 to 20 x 10‐3 N. The measured data showed that there is an indentation size effect. Classical Meyer's law was used for the characte...

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Veröffentlicht in:Crystal research and technology (1979) 2001-11, Vol.36 (11), p.1253-1262
Hauptverfasser: Sayan, P., Ulrich, J.
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description The hardness of NaCl crystal in the presence of mono, divalent and polyvalent ions were measured. Measurements were made in the indentation load range from 5 x 10‐3 to 20 x 10‐3 N. The measured data showed that there is an indentation size effect. Classical Meyer's law was used for the characterization of crystal hardness f NaCl. The Meyer index was found to be smaller than 2 indicating brittle material characteristic. The PRS model was also used for the determination of the load‐independent microhardness value. It was found that the crystal hardness of NaCl is chancing depending on the type of impurity and the concentration.
doi_str_mv 10.1002/1521-4079(200111)36:11<1253::AID-CRAT1253>3.0.CO;2-2
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source Wiley-Blackwell Journals
subjects Condensed matter: structure, mechanical and thermal properties
crystal hardness
Exact sciences and technology
impurity
indentation size effect
Mechanical and acoustical properties of condensed matter
Mechanical properties of solids
Physics
Tribology and hardness
vickers microhardness
title Effect of Various Impurities on the Hardness of NaCl Crystals
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