Effect of carbon nanotube additive on the structural and thermal properties of Se85Te10Ag5 glassy alloy

Abstract

Carbon nanotube (CNT) additive glassy com- posites ((Se85Te10Ag5)100-X(CNT)X )( X = 0, 3 and 5) have been prepared by melt-quenching technique. The purpose of the present work was to investigate the upshot of 3 and 5 at.% CNT additive on Se85Te10Ag5 glass in regard to the structural and thermal properties. These samples have been structurally characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM) technique. Raman spectroscopy is used to study the local structural changes after CNT incorporation in Se85- Te10Ag5 glassy alloy. Differential scanning calorimetry (DSC) technique has been used to study the changes in phase transformations after CNT incorporation under non- isothermal conditions at different heating rates (5, 10, 15 and 20 K min -1 ). The obtained results of XRD and TEM show the signature of MWCNTs, and DSC curve shows an additional relaxation, i.e. Tg for 3 and 5 % CNT additive Se85Te10Ag5 samples which is not observed in pure Se85- Te10Ag5 glass. There also occurs a Tg in DSC curve of all three investigated samples corresponding to an intrinsic b- Ag2Se phase also called solid electrolyte glass phase near 406 K (133 � C) which are in conformity with the phase identification in XRD patterns.