A new threshold of uncovering the nature of glass transition: The slow β relaxation in glassy states

• 来源期刊: 科学通报(英文版)
• 学科: 工学
• 关键词: 玻璃化转变 动力松弛 性质 门槛 作者 过冷液体 液体结构 热力学
• 年，卷（期）: 2010,（6）
• 所属期刊栏目: REVIEW
• 页码范围: 457-472
• 页数: 16页
• 分类号: TG386.3 TS201.7
• 语种: 英文

摘要

The glass transition involves more than one dynamic relaxation mechanisms in supercooled liquids,such as α relaxation,slow β relaxation and fast β relaxation and so on.For the traditional theoretical system,α relaxation is believed mainly responsible for the nature of the glass transition as the beginning of the phenomenon.This idea,however,has been open to a big challenge since recent studies have indicated that slow β relaxation closely relates to α relaxation.Slow β relaxation determines the characterist...