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The β → α phase transition, melting, crystallization, and vitrification of calcium metasilicate were studied by high-temperature Raman scattering spectroscopy. The results demonstrate that, in the course of melting, the [Si3O9] metasilicate rings, which form the structural basis of the α phase, transform mainly into [SiO3]∞ anions. The structural similarity or dissimilarity of the CaO · SiO2 melt...
Ionic and atomic absorption spectrometries were used to study magnesium ionization in cathodic sputtering glow discharge (CSGD) plasma with aluminum-magnesium alloys as cathodes. A method, based on Doppler broadening-dependent absorption width, of ionization degree resolution by relative absorbance is proposed. The experimental results reveal that there are plentiful magnesium ions in the plasma under...
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