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arXiv · 0803.2715

Effect of Cd2+ on the Growth and Thermal Properties of K2SO4 crystal

S. Bin Anooz·D. Klimm·M. Schmidbauer·R. Bertram·M. Rossberg
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Abstract

Single crystals of pure and Cd2+ doped potassium sulfate were grown from aqueous solutions by the slow evaporation technique. From nutrient solutions with a CdSO4 concentration of 4wt.% crystals containing 0.014wt.% dopant concentration could be obtained. The X-ray diffraction patterns of powdered crystals confirmed their crystal structures for both cases. Thermal analysis of pure crystals shows that the alpha-beta phase transformation peak around 580 deg C is superimposed with spurious effects, while for Cd2+ doped crystals this is not the case. The thermal hysteresis of the phase transition is 8 K for undoped K2SO4 and is reduced to 3.5 K for K2SO4:Cd2+. Compared to undoped crystals, the optical transmittance of Cd2+ doped crystals is higher.

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S. Bin Anooz, D. Klimm, M. Schmidbauer, R. Bertram, M. Rossberg. 2009-08-19. Effect of Cd2+ on the Growth and Thermal Properties of K2SO4 crystal. https://doi.org/10.1016/j.jpcs.2008.03.015

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