Glass memory behavior: linear volume response in the annealing region

Glass memory behavior has been investigated at temperatures within the glass transformation region. A previous paper presented a phenomenological description of the volume response of B2O3 glass to single small pressure changes applied after thorough sample equilibration. The Boltzmann superposition principle is applied to this description to predict the volume response of B2O3 glass to successive small pressure changes of the type which reveal appreciable memory behavior. These predictions were tested by performing such multiple pressure-jump experiments. The experimental data agreed with the theoretical predictions without the adjustment or reevaluation of any of the parameters used