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In‐situ studies of the vibrational characteristics and microstructure evolution of the Na2WO4·2H2O (sodium tungstate dihydrate) crystal during the temperature‐induced solid‐state phase transformation and melting process were carried out using high‐temperature Raman spectroscopic technique. Results showed that the thermal decomposition process of the Na2WO4·2H2O crystal takes place mainly within the...
In order to optimize the growth conditions for tungstate crystals, the structural evolution of ditungstate Na2W2O7 from the crystalline to molten states during heating has been investigated by in‐situ high temperature Raman spectroscopic technique. The experimental temperature‐dependent Raman spectra showed that Na2W2O7 crystal has not undergone any solid‐state phase transformations during heating...
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