1. School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
2. National Institute of Metrology, Beijing 100029, China
Abstract: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.
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