A transmission electron microscopy study of radiation damages to beta-dicalcium (Ca2SiO4) and M3-tricalcium (Ca3SiO5) orthosilicates

摘要

In this paper, we present results of a first study of electron radiation damages to beta-dicalcium silicate (Ca2SiO4:C2S) and M3-tricalcium silicate (Ca3SiO5:C3S) in a Transmission Electron Microscope. Electron irradiation is used here as a means to bring to light a difference of reactivity under the electron beam between these two complex ceramic oxides, keeping in mind that C3S reacts faster with water than C2S and that this property remains unexplained, owing to the complex structural characteristics of these ceramics which have not yet been fully elucidated.