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ISSN:2394-3661 | Crossref DOI | SJIF: 5.138 | PIF: 3.854

International Journal of Engineering and Applied Sciences

(An ISO 9001:2008 Certified Online and Print Journal)

Growth, Structural and Micro hardness studies of KSbF4 and K2SbF5 crystals

( Volume 2 Issue 7,July 2015 ) OPEN ACCESS

C. Besky Job, R. Shabu, S. Paulraj


Interest in Potassium Fluoro Antimonate crystals has been increased for the last four decades due its superionic conduction and its unusual electro-optic properties. Potassium tetra fluoro antimonate (KSbF4) and Potassium penta fluoro antimonite (K2SbF5) crystals have been grown by slow evaporation method. KSbF4 crystallizes into orthorhombic structure with a space group Pmmn. K2SbF5 belongs to orthorhombic crystal system with a space group Cmcm.  Micro indentation analysis on these crystals indicates that they are moderately softer substances. Both crystals revealed reverse indentation size effect (RISE). Variation of stiffness constant with load has been discussed. Yield strength for KSbF4 and K2SbF5 crystals have been found out as 16.72 and 16.941 MPa respectively. 

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