激光闪光法测量固体材料热扩散率的研究进展

Research Progress of Laser Flash Method in Measuring Thermal Diffusivity of Solid Materials

基于瞬态原理的激光闪光法因其具有所用试样小、测试周期短等优点,在测量固体材料的热扩散率方面发挥了重要作用,应用较为广泛。根据近些年来在激光闪光法可测材料种类、关键技术问题以及优化和改进3个方面的研究进展,介绍了其应用情况,并分析总结了其研究重点、难点以及研究价值,最后讨论了激光闪光法存在的挑战和前景,为未来激光闪光法在更多领域的应用提供参考。

The laser flash method based on the transient principle is widely used and plays an important role in measuring thermal diffusivity of solid materials due to its advantages of small sample size and short test cycles.According to the research progress in the types of measurable materials,key technical problems,optimization and improvement of laser flash method in recent years,the application of laser flash method is introduced,and its research priorities,difficulties and research values are analyzed and summarized.Finally,the existing challenges and prospects of laser flash method are discussed,it will provide reference for the future application of laser flash method in more fields.