the effect of rare earth (re) elements, including ce and la, on the sorption properties of zr-co getters was investigated in this work. the phase evolution, microstructural characteristics of getter powders were studied by means of x-ray diffraction method, scanning electron microscopy (sem) and energy dispersive x-ray spectroscopy (eds). the nanostructured zr3co intermetallic compound has been...

We report vacuum packaging procedures for low-stress die attachment and versatile hermetic sealing of resonant MEMS. The developed in-house infrastructure allows for both high and moderate-level vacuum packaging addressing the requirements of various applications. Prototypes of 100 μm silicon-on-insulator Quadruple Mass Gyroscopes (QMGs) were packaged using the developed process with and withou...

a chain of events which leads to the disintegration of the personality and ultimately to the hospital. The percentage of the population who will spend some part of their lives in a mental hospital is increasing, and 3 large proportion of these people are elderly. Senile dementia, it is thought* is accelerated by loneliness. A harsh winter makes already existing problems more imminent. Death amo...

• Chemistries of Zr- and Ti-based compounds are reviewed in terms alloying elements gettering properties. Activation process, surface coating resistance to impurities discussed. New processes other possible applications foreseen. Metal hydrides were discovered the fifties since then have been widely studied developed, mainly for energy (batteries, hydrogen storage, compression.). In addition th...

In this article, starting from a calculation of the internal conductance inside AC and DC plasma display panels ~PDPs!, a simple theoretical model is used to estimate the pressure evolution inside a display during the exhausting process and the lifetime. All the values obtained are then compared to the results of specific measurements carried out on real PDPs. Based on these data, the role of a...