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The glass structure and antibacterial properties of (65-x)ZnO-xB 2 O 3-35P 2 O 5 glasses were investigated. Zinc borophosphate glasses were prepared using a conventional melt-quenching technique at 1000°C. Glass transition temperature and CTE were studied and the structure of zinc borophosphate glasses was evaluated by FTIR. The Zn

In this study, we investigated the relationship between the structural changes and wetting properties of porcelain enamel doped with CoO. Glass with the composition 45SiO 2 15B 2 O 5 25NaO15CaO was doped with different CoO concentrations. The wetting properties were characterized by high-temperature microscopy and the structural changes were observed by scanning electron microscopy, X-ray photoelectron spectroscopy, electron probe microanalysis, Fourier transform infrared spectroscopy, and energy dispersive X-ray spectroscopy. CoO addition increased the number of non-bridging oxygen atoms in the glass system, as well as the wetting ability. The addition of CoO to the porcelain enamel not only increased adherence, but also decreased the sintering temperature.

The boron alkali molybdate glass system was investigated as lead-free low-temperature melting sealing materials, with different boron oxide contents between 0 and 8 mol%. The glasses were characterized using X-ray diffraction (XRD), differential scanning calorimetry (DSC), infrared spectroscopy (IR), and by densities. Their chemical properties were measured by their dissolution rates (DR) and by Product Consistency Test (PCT). As the boron oxide contents were increased, the glasses maintained their low temperature properties (Tg under 175 ℃) and new network formers of [BO3] triangular units and [BO4] tetrahedral units appeared. The results confirmed that boron oxide doped molybdate glass is a candidate low-temperature sealing material. The introduction of small amounts of B2O3 causes a change in the amorphous network's main structural units from molybdate units to a mixture of molybdate and borate units. The glasses possess MoO4, MoO6, BO3 and BO4 groups as basic structural units. In this study, the amount of MoO3 was much higher than that of B2O3, so the boroxol ring structure occurred much less frequently than molybdates as a network former. But addition of B2O3 leads to an increase in the number of bridging oxygens and strengthens the glass network. As a result, the overall glass system becomes more rigid, and chemical durability is improved. † (