Departmental Bulletin Paper Si-Te-M(M = Ag, In)系ガラスの熱力学的性質
Study of thermodynamic properties of Si-Te-M (M = Ag, In) glasses

柿沼, 藤雄  ,  Kakinuma, Fujio

20pp.9 - 14 , 2016-03 , 新潟工科大学
The study of thermodynamic properties of Si_100TeX (75 ≤ x ≤ 87.5) and Ag_5(Si_15Te_85)_95 and In_5(Si_15Te_85)_95 glasses have been carried out by using the differential scanning calorimetric (DSC) measurements.The thermodynamic parameters such as glass transition temperatures, crystallization temperatures for Si-Te and M-Si-Te glasses were obtained.The measurements were carried out for several rate of heat.The activation energies for crystallization were obtained by using the Kissinger’s theory.The glass forming ability are obtained by using the differences between the crystallization and grass transition temperature and between the melting and crystallization temperature.The values of grass forming ability for the Si-Te glasses are over 0.4, which indicates that the Si-Te alloys near the eutectic composition are good glass formers.The addition of Ag element to the Si_15Te_85 alloy becomes lower the glass transition temperature and the crystallization temperature.On the other hand, the addition of In element becomes higher the glass transition temperature.These differences seem to be the bonding nature between Ag-Te and In-Te and the local atomic structure around the Ag and In atoms.

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