สองอันแรก

สองอันแรก

ผลลัพธ์ (อังกฤษ) 1:

The first two

ผลลัพธ์ (อังกฤษ) 3:

Results.3.1. Thermal analysis.DTA studies were performed on as-quenched amorphous glass samples. Fig. 1 (a) shows DTA traces of BaPF glasses with different. CaF2 contents. All the samples exhibited an endotherm corresponding to their glass transition temperature and two exotherms. Indicating their crystallization temperatures followed by another endotherm corresponding to the re-melting of, glasses. From, DTA traces the values of glass, transition temperature Tg (onset of glass transition region), onset crystallization. Temperature Tx (onset, of first crystallization peak), and melting temperature Tm (minimum of endotherm corresponding to. The re-melting of glasses) were obtained as shown in Fig. 1 (b) and tabulated in Table 1. Both glass transition temperature. And onset crystallization temperature of BaPF glasses increased with the increase in CaF2 content. However the glasses,, With higher CaF2 content depict lower melting temperature.