CLUSTER MODEL OF GLASS-TRANSITION - THE VARIATION OF T(G) WITH CAGE VIBRATIONAL FREQUENCY OF NA+ IONS IN SODIUM BOROVANADATE GLASSES

被引：10

作者：

MUTHUPARI, S ^{[1
]}

RAO, KJ ^{[1
]}

机构：

[1] INDIAN INST SCI,MAT RES CTR,BANGALORE 560012,KARNATAKA,INDIA

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 223卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(94)00417-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The cage vibrational frequencies of Na+ ions in sodium borovanadate glasses have been examined using far-infrared spectroscopy. The glass transition temperature, T(g), is found to vary linearly with the cage vibrational frequency, nu. The variation of nu has been related to the average excess partial charge on the cage oxygen atoms and hence to the force constant. The observed linear variation of T(g) as a function of nu has been rationalized on the basis of the cluster model of glass transition.

引用

页码：133 / 138

页数：6

共 22 条

[1] ON TEMPERATURE DEPENDENCE OF COOPERATIVE RELAXATION PROPERTIES IN GLASS-FORMING LIQUIDS [J].

ADAM, G ;

GIBBS, JH .

JOURNAL OF CHEMICAL PHYSICS, 1965, 43 (01) :139-&

[2] CONFIGURATIONAL EXCITATIONS IN CONDENSED MATTER, AND BOND LATTICE MODEL FOR LIQUID-GLASS TRANSITION [J].

ANGELL, CA ;

RAO, KJ .

JOURNAL OF CHEMICAL PHYSICS, 1972, 57 (01) :470-&

[3]

BAHARATHI S, 1983, SOLID STATE COMMUN, V46, P457

[4]

BALASUBRAMANIAN S, UNPUB J NONCRYST SOL

[5]

BALASUBRAMANIAN S, UNPUB J PHYS CHEM

[6] MOLECULAR-DYNAMICS STUDY OF STRUCTURE AND THERMODYNAMIC PROPERTIES OF ARGON MICROCLUSTERS [J].

BRIANT, CL ;

BURTON, JJ .

JOURNAL OF CHEMICAL PHYSICS, 1975, 63 (05) :2045-2058

[7] STABILITY OF ZEOLITES UNDER ELECTRON-IRRADIATION AND IMAGING OF HEAVY CATIONS IN SILICATES [J].

BURSILL, LA ;

THOMAS, JM ;

RAO, KJ .

NATURE, 1981, 289 (5794) :157-158

[8] CATION VIBRATIONS IN INORGANIC OXIDE GLASSES [J].

EXARHOS, GJ ;

RISEN, WM .

SOLID STATE COMMUNICATIONS, 1972, 11 (05) :755-&

[9]

FAERBER L, 1970, J PHYS CHEM-US, V74, P3510

[10]

HEMALATHA S, 1984, PRAMANA, V23, pL269

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