Two-step sintering has been used to investigate the structure evolution and properties of the biogenic HA/glass composite containing 50 wt.% Na2O-B2O3-SiO2-based glass. The borosilicate glass facilitated the sintering process due to the viscous glass flow and stabilized the HA phase against thermal decomposition. It has been established that the structure significantly changes, becoming more ho...

Using high-brilliance high-energy synchrotron X-ray radiation, for the first time the total scattering of a thin organic glass film deposited on a strongly scattering inorganic substrate has been measured in transmission mode. The organic thin film was composed of the weakly scattering pharmaceutical substance indomethacin in the amorphous state. The film was 130 µm thick atop a borosilicate gl...

Nearly 100 tests were performed with prototypical melters and off-gas system components to investigate the extents to which technetium is incorporated into the glass melt, partitioned to the off-gas stream, and captured by the off-gas treatment system components during waste vitrification. The tests employed several simulants, spiked with 99mTc and Re (a potential surrogate), of the low activit...

Crystalline calcium carbonate was deposited on various substrates (substrate temperature of 80 °C) from a saturated hydrogen solution (solution 10 °C). A single aragonite phase the Al substrate, whereas mixed and calcite grew soda lime glass, borosilicate silica polycarbonate substrates. With increasing deposition time, crystal size proportion silicate glass substrate increased. Furthermore, cr...