Forming Behavior and the Structure of Glasses

Abstract

The effect of forming on arsenic selenide glass fiber drawn under extreme conditions are discussed in detail. Differential Scanning Calorimetry (DSC) data are correlated with previously published time-of-flight (TOF) neutron scattering, nuclear quadrupole resonance (NOR) data to argue that the structure of As₂Se₃ glass pulled under extreme conditions is oriented and that some of the extreme structures imposed in the arsenic selenide fibers relax at room temperature. A model is proposed for the sequence of events suggesting a regime of interchain breakage followed by reformation followed by intrachain breakage. Also evident are unexpected small ring structures as a result of low temperature healing process.