Physical properties and structural studies of Se 100- xSb x

Abstract

The DTA thermograms of the system Se 100- x Sb x , where x = 5, 10 and 15, were recorded at the heating rates 5,10,15, 20 and 30° C min −1. The glass transition temperature ( T g), and the crystallization temperature ( T cp) were found to be heating rate dependent, while the melting temperature ( T m) was not. Increasing antimony content in this system leads to decreasing T g, T cp and T m. The apparent activation energy of crystallization was 15.99, 25.135 and 29.705 kcal mol −1 for the compositions x = 5, 10 and 15, respectively. The X-ray diffraction charts show that the crystalline phases formed are Se, Sb and Se 3Sb 2.