Physicochemical characteristics of Ba2+ mixed calcium tartrate crystals
作者： K Suryanarayana , S.M Dharmaprakash
DOI: 10.1016/S0254-0584(01)00344-3
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摘要: Abstract Non-linear optical single crystals of barium mixed calcium tartrate tetrahydrate with molecular formula Ca0.8Ba0.2C4H4O6·4H2O (CBT) have been grown in gels using a chemical reaction method at ambient temperature. The physical and characteristics gel CBT investigated by employing Vickers micro hardness, etching, thermal techniques. crystalline habit is deviated from that crystals. Because lower dehydration coefficient Ba2+ strongly incorporated tetra hydrate (CTT) crystal lattice. etch pit density greater than pure CTT due to lattice distortion. mechanical strength the increased doping it 20% barium. two dimensional diffusion mechanism suggested for solid state non isothermal step turn out be are found thermally less stable
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