Abstract: Described in example embodiments are nanocomposite powders including calcium phosphate and silver nanoparticles on the surface of the calcium phosphate. Other example embodiments, describe methods of forming nanocomposite powders comprising a) preparing a nanometric calcium phosphate by a sol-gel processing route; and b) depositing silver nanoparticles on the calcium phosphate surface. Compositions including nanocomposite powders and uses of those compositions are also described.

Abstract: Described in example embodiments are nanocomposite powders including calcium phosphate and silver nanoparticles on the surface of the calcium phosphate. Other example embodiments, describe methods of forming nanocomposite powders comprising a) preparing a nanometric calcium phosphate by a sol-gel processing route; and b) depositing silver nanoparticles on the calcium phosphate surface. Compositions including nanocomposite powders and uses of those compositions are also described.

Abstract: The invention relates to a method and device for measuring hydridation kinetics at different temperatures in tubular industrial components. The invention consists in measuring the power dissipated by a hydridation reaction over time as well as the variation in the electric resistance during said reaction. The inventive method and device can be used to optimise industrial components, such as tubes and fuel claddings for nuclear reactor cores. In this way, safety is increased, with the prevention of unplanned shutdowns of commercial reactors and a decrease in high-activity nuclear waste.

Abstract: The method involves measuring hydrogen permeation in the tubes by mass spectrometry, wherein the tube is inserted into a high or ultrahigh vacuum device in which a mass spectrometer and a total pressure gauge are located. H2 or H2 and inert gas mixtures are circulated inside the tube at the required partial pressure. The tube is then heated and the appearance of H2 outside the tube is observed. The flow thereof inside the tube and emergence time, called permeation time, are determined based on permeation curves. The emergence time of the first microcrack is also determined.

Abstract: The method involves measuring hydrogen permeation in the tubes by mass spectrometry, wherein the tube is inserted into a high or ultrahigh vacuum device in which a mass spectrometer and a total pressure gauge are located. H2 or H2 and inert gas mixtures are circulated inside the tube at the required partial pressure. The tube is then heated and the appearance of H2 outside the tube is observed. The flow thereof inside the tube and emergence time, called permeation time, are determined based on permeation curves. The emergence time of the first microcrack is also determined.