We have determined the S contents of 14 different silicate melts equilibrated with Air/SO2 mixtures at 1 atm pressure and temperatures 1473–1773 K in 50 intervals. Under these oxidizing conditions sulfur dissolves predominantly as sulfate (S6+ or SO42–). The quenched products were by EPMA (Electron Probe Micro-Analysis) SIMS (Secondary Ion-Mass Spectrometry) latter being employed for low (i.e.,...

Micromechanics techniques, such as nano-indentation and micro-pillar compression, can be applied to study hydrogen-charged zirconium alloys at elevated temperatures, which is highly relevant for the nuclear industry. Such experiments are often conducted inside a scanning electron microscope (SEM) under high-vacuum conditions (10−5 mbar). The combination of high-temperature environment causes so...

Volcanic glass is deposited with trace amounts (0.1–0.6 wt.%) of undegassed magmatic water dissolved in the glass. After deposition, meteoric water penetrates into the glass structure mostly as molecular H2O. Due to the lower dD (‰) values of non-tropical meteoric waters and the 30‰ offset between volcanic glass and environmental water during hydration, secondary water imparts lighter hydrogen ...

This study investigated the interfacial microstructure between gold-coated titanium and low-fusing porcelain. The square surfaces of cast titanium split rods were sputter-coated with gold using a sputter coater at 40 mA for 1,000 seconds. Specimens were prepared for transmission electron microscopy (TEM) by cutting and polishing two pieces of the gold-coated split-rod specimens, which were glue...

Luminescence observed on adsorption of gases and vapours (RSL) on silica gel previously exposed to y-rays has been investigated. The dependence of RSL intensity on absorbed radiation dose and degassing temperature of the gel prior to irradiation parallels the dependence of radiothermoluminescence (RTL) intensity: A limiting value is reached around 1 Mrad and the intensity increases steeply on r...