Two vitreous systems, x Fe 2 O 3·(100-x)[3 B 2 O 3· MO ] ( MO ⇒ KCl or CaCl 2) with 0≤x≤5 mol %, were characterized by Raman spectroscopy in attempt to determine the local structure of glasses. The mode of which glass structure is influenced by Fe 2 O 3 and CaCl 2-replacement of KCl , is established. The results show that BO 3 and BO 4 are the main structural units of the glass systems.
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Păşcuţă et al. (2004) studied this question.
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