中文摘要：

软物质物理已成为物理学发展迅速的重要前沿学科。描述软物质复杂非平衡态动力学及其运动规律是理解其宏观性质的关键。内耗与力学谱作为材料缺陷与力学性质研究的重要实验技术,它能够很灵敏地探测和研究材料中发生的复杂相变和弛豫动力学过程。文章结合作者近年来的典型工作,介绍了内耗技术在软物质研究中的一些应用,阐述了内耗手段发挥的独特作用。随着内耗测试新方法、新技术和内耗新理论的不断出现和完善,相信未来内耗技术在材料科学和凝聚态物理研究领域将起到越来越重要的作用。

英文摘要：

Soft condensed matter physics has become a fast developing and important subject in physics. Understanding the complex non-equilibrium dynamics and pattern of movement is the key to many macroscopic properties of soft materials. Internal friction, as a powerful experimental technique for the study of defects and mechanical properties of materials, is sensitive to complex phase transformations and relaxation dynamics in condensed matter. In this work we demonstrate the applications of internal friction technology in the study of soft matter based on our recent work.With the emergence and development of new measurement methods and techniques and new internal friction theories, we believe that internal friction will play an increasingly important role in the investigation of condensed matter physics and materials science.