Crystal Research and Technology
Cryst. Res. Technol. 42, 589 (2007) - Abstract -

Synthesis and characterization of cadmium tartrate single crystals

S. K. Arora, A. Kothari, B. Amin, and B. Chudasama

Department of Physics, Sardar Patel University, Vallabh Vidyanagar 388 120 Gujarat, India

Keywords divalent tartrates, gel growth, thermal-electrical-mechanical characteristics, electronic polarizability
PACS 81.10.-h, 77.84.-s, 81.70.Pg, 60.20.Qp
DOI 10.1002/crat.200610868

Efforts have been successful to crystallize the electroceramic compound of cadmium tartrate through silica hydrogel. Analysis of thermograms reveals decomposition of the crystals to take place within the temperature range 65 to 442°C in air atmosphere. Some important characteristic data, i.e., valance electron plasma energy, Penn gap, Fermi energy, interionic distance, electronic polarizability have been obtained. The DC conductivity of the crystal typically lies between the conductivities of metal and insulator and we derived several pertinent parameters such as hopping energy, hopping distance, coulomb gap, etc. The micromechanical indentation of the crystal shows nonlinear variation of the impact microhardness as a function of the applied load. The estimation of fracture toughness, fragility coefficient and yield strength has too been made for the synthesized crystal.





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