Borosilicate glasses (16Na2O–10B2O3–74SiO2, NBS) with water contents up to 22 mol% H2O were prepared to study the effect of water on structural relaxation using DTA, viscometry and internal friction measurements. The results show that the glass transition temperature Tg of DTA and the isokom t...
A previous report (Möncke et al., PCG 2013) discussed the possible formation of a borosilicate layer on the surface of Late Bronze Age glass samples (Mycenaean period, excavated in Palaia Epidavros, Greece). Now, we investigate potential mechanisms for such suggested borate incorporation into th...
In-depth insight into the structure of oligomers in sols plays an important role in determining the structure and properties of the final materials, such as aluminium borosilicate fibers, flakes, microspheres and composites. In this study, the influence of H3O+ on the structure formation of olig...
The Al2O3–B2O3–SiO2 system is explored; in the composition Al16B6Si2O37, for the effect of the preparation conditions on the properties of the final product. The sol–gel method was tried to prepare this composition both in an aqueous and non aqueous media. The crystalline phases developed wer...
Glass-ceramic frits of various sizes composed of zinc aluminum calcium borosilicate (CaOB2O3SiO2ZnOAl2O3) were prepared by mechanical milling and subsequent size selection of the glass melt. Glass frits with mean particle sizes of 1.2 ± 0.9 μm, 2.9 ± 2.1 μm, and 4.8 ± 2.3 μm were successfu...
Abrasive water jets (AWJs) have recently been used to mill unmasked features as narrow as 600 μm. This paper investigated the use of metal masks in order to decrease this minimum possible feature width in Al6061-T6 and borosilicate glass. Although there was under-etching on the channel sidewall...
Molybdenum is a fission product with high fission yield, present in High Level Liquid Waste (HLW). Presently HLW is confined in borosilicate glass matrix. To enhance the solubility of MoO3, different host glass matrices containing different amount of MoO3 were prepared and studied. Phosphate con...
Ce3 +–doped, Tb3 +–doped and (Ce3 +, Tb3 +)–codoped BaO–Gd2O3–Al2O3–B2O3–SiO2 glasses were prepared by high temperature melting method and their luminescence properties have been investigated under UV excitation. Ce3 +–doped borosilicate glass has a strong purplish–blue emission with th...
Borosilicate glass is used to vitrify high-level radioactive waste. Radiation effects on borosilicate glass have been studied extensively. Sodium borosilicate glass samples with compositions of 67.3% SiO2, 16.7% B2O3 and 16% Na2O in molar percent and vitreous silica were irradiated with multi-en...
Here, we demonstrate the results pertaining to energy transfer kinetics in Nd3+/Yb3+ ions combinedly doped in oxy-fluoride based sodium aluminum bismuth fluoro-borosilicate glasses. The thermal stability for the parent NABFBS glass is evaluated from TG-DTA measurement, and Raman & FT-IR spectral...
Sediment cores taken near extant springs along the western margin of Soda Lake playa, as well as from the playa center, reveal dramatic hydrologic changes that occurred in the central Mojave Desert during the late Quaternary. Results of stratigraphic, chronologic, physical, chemical, and microfo...
Several exposure campaigns of silica–soda–lime window glass have been performed in 30 European sites and 1 in Canada in order to understand, quantify and model the phenomenon of soiling. In this purpose samples were exposed sheltered from the rain. Parallel to exposure, several meteorological ...
Dry lime causes a loss of volatile anaesthetics by degrading and adsorbing them. Degradation produces toxic substances and heat. Rehydration of lime stops degradation. If humidified breathing gases rehydrate lime, closed anaesthesia-circuits may reduce the loss of anaesthetics. To test this hypo...
In the paper, the method of fabrication of monolithically integrated microfluidic–microoptics systems is presented. Soda-lime glass is used as a substrate material, in which the waveguiding optics is fabricated by means of an ion exchange process, whereas the microfluidic channel is manufacture...
The effect of structural water on density, elastic constants and microhardness of water-bearing soda-lime-silica glasses of up to 21.5 mol% total water is studied. It is found that the Poisson ratio and the water content are positively correlated, while density and the elastic moduli decrease wi...
In order to examine temporal patterns and the hydrological cycle of shallow soda pans, six pans in Hungarian Great Plain were sampled at monthly intervals over a period of 2.5 years. Water chemistry and physical parameters (temperature, pH, dissolved oxygen, conductivity, light, water color - Pt...
Using fresh soda-lime (15% water by weight) the soda lime/air partition coefficient of halothane was found to decrease as a function of vapour phase halothane concentration from 2 40 at 0.3% halothane by volume to 1.15 at 2.6%, but adsorption generally followed Henry’s law. However, soda-lime d...
We have investigated gas composition during simulated inhalation induction with sevoflurane to elucidate possible mechanisms of incidental prolonged induction times and airway irritation. Using a circle system, 8% sevoflurane in oxygen 6 litre min-1 was washed into an absorbing canister filled w...
The effect of dry fractionation on pulping and pulp properties of reed canary grass was studied for two alkaline pulping processes. Multivariate data analysis was used to evaluate the influence of dry fractionation, alkali charge and cooking time on pulp yield, screening reject, drainage, fibre ...
It is well-known that the sliding contact damage of glass materials is very sensitive to the presence of water, but the detailed mechanisms remain elusive. In this work, the effects of water and speed on wear behaviors of soda lime silica (SLS) glass are investigated upon a ball-on-flat reciproc...
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