Contribution of the Technique of Thermostimulated Currents for the Elucidation of the Nature of the Johari-Goldstein and other Secondary Relaxations in the Vitreous State

被引：14

作者：

Diogo, Herminio P. ^{[1
]}

Moura Ramos, Joaquim J. ^{[2
,3
]}

机构：

[1] Univ Lisbon, CQE, Inst Super Tecn, P-1049001 Lisbon, Portugal

[2] Univ Lisbon, CQFM, P-1049001 Lisbon, Portugal

[3] Univ Lisbon, Inst Nanosci & Nanotechnol, Inst Super Tecn, P-1049001 Lisbon, Portugal

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2014年 / 21卷 / 05期

关键词：

Dielectric polarization; thermally stimulated currents; relaxation processes; secondary relaxations; Johari-Goldstein; JG-relaxation; aging; amorphous materials; SLOW MOLECULAR MOBILITY; GLASS-TRANSITION; DIELECTRIC-RELAXATION; ALPHA-RELAXATION; BETA-RELAXATION; SORBITOL; DYNAMICS; LIQUIDS; MOTIONS;

D O I：

10.1109/TDEI.2014.004078

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work the usefulness of the technique of thermally stimulated depolarization currents (TSDC) to the study of the secondary relaxations in amorphous solids, and particularly of the Johari-Goldstein (JG) relaxation, is emphasized. The features of the JG relaxation are carefully analyzed, and the contribution of this experimental technique for the elucidation of its molecular mechanisms is also stressed.

引用

页码：2301 / 2309

页数：9

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