Excess heat capacity in glass-forming liquid systems containing molecules

作     者：KE HaiBo WEN Ping WANG WeiHua 

作者机构：Institute of PhysicsChinese Academy of Sciences 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2013年第56卷第6期

页      面：1090-1095页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 51071170 and 11274353) the National Basic Research Program of China (Grant Nos. 2007CB613904 and 2010CB-731603) 

主　　题：glass-forming liquid excess heat capacity the glass transition 

摘      要：Excess heat capacities at glass transition temperature in two types of glass-forming systems of [xNaNO3(1x)KNO3]60·[Ca(NO3)2]40(0x1) and Ca(NO3)2yH2O(4y13) are *** the former system,with the replacement of K + cation with Na + cation,the excess heat capacity is around 65.1 J mol-1·K-1,while the excess increases by 38.9 J mol-1·K-1 upon one molar H2O content in latter system.A quantitative description to the excess heat capacity is built up with the thermal effects of atomic and molecular translational motion in *** results might offer a further understanding to the glass transition.