Investigation of the relation between basicity and enthalpy of mixing of multi-component silicate melts

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The following three studies on oxide melts are involved in this project.[1] The redox equilibria of Cr(VI)/Cr(III) in high temperature solution were investigated using electrochemical methods. It was suggested that the equilibrium potential of small contents of Cr ions could be a good measure of the basicity of multi-component oxide melts.[2] The high temperature microcalorimetry of pseudo-binary alkali borates (Na-K and Na-Cs) showed that the more different ion size of alkali ions gave more negative, asymmetric enthalpy of mixing. The possibility of the B-0 network reconstructing was suggested for the Na-Cs exchange.[3] The molecular dynamics simulations were carried out and reproduced the negative enthalpy of mixing for Na-K disilicate melt mixture. The relations between atomistic structure and mixing properties were revealed.The concurrent approach of experimental and computational studies is shown to be significantly effective for the study of high temperature oxide Solutions.