Vickers microhardness of K2Co(SO4)2 · 6H2O single crystals and fracture geometry around impressions of vickers, knoop, and spherical indenters


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The microhardness on the (010) and (001) planes in K2Co(SO4)2 · 6H2O crystal has been measured by the Vickers indentation method. Its values are, respectively, 11500 and 1300 MPa. No microhardness anisotropy of the first kind is revealed on either plane. The fracture geometry under indentation by a spherical indenter and Vickers and Knoop indenters is studied. The crystal has lower brittleness than the isomorphic Cs2Ni(SO4)2 · 6H2O crystal.

Sobre autores

N. Sizova

Shubnikov Institute of Crystallography

Autor responsável pela correspondência
Email: nsizova37@mail.ru
Rússia, Leninskii pr. 59, Moscow, 119933

N. Novikova

Shubnikov Institute of Crystallography

Email: nsizova37@mail.ru
Rússia, Leninskii pr. 59, Moscow, 119933

V. Manomenova

Shubnikov Institute of Crystallography

Email: nsizova37@mail.ru
Rússia, Leninskii pr. 59, Moscow, 119933

E. Rudneva

Shubnikov Institute of Crystallography

Email: nsizova37@mail.ru
Rússia, Leninskii pr. 59, Moscow, 119933

A. Voloshin

Shubnikov Institute of Crystallography

Email: nsizova37@mail.ru
Rússia, Leninskii pr. 59, Moscow, 119933

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