Fig. 3
From: Copper-containing glass ceramic with high antimicrobial efficacy
Elemental mapping of chemical species in microstructure of copper–glass ceramic Energy-dispersive X-ray spectroscopy (EDS) using a scanning transmission electron microscope was used for elemental mapping. a A microstructural view of the copper–glass ceramic highlighting the three phases present. Some smaller cuprite crystals are also observed in the continuous phase. b EDS elemental mapping shows that the high durability, continuous matrix phase is enriched in silicon, the lower durability, discontinuous phase in enriched in phosphorous, and the crystals are composed of copper. c EDS elemental mapping also reveals that the lower durability phase is enriched in potassium. Although boron is a major element in the composition, it was not included in the analysis due to the difficulty of measuring light elements via EDS
