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"세라믹 분말"

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"세라믹 분말"

Evaluation of Flow Properties of Ceramic Powders Using Static and Dynamic Image Analysis Methods
Ye-won Moon, Hyo-dong Lee, Ji-hui Oh, Jin-ae Kim, Dong-won Lee, Jong-min Oh
J Electr Electron Mater 2025;38(3):254-264.   Published online May 1, 2025
DOI: https://doi.org/10.4313/JKEM.2025.38.3.3
Ceramic powder is an important material used for various purposes in advanced industries, and the fundamental properties of ceramic powder such as particle size, particle size distribution, and flow properties play a decisive role in determining the quality and performance of the final product. In general, these properties have been evaluated through particle size and shape analysis. However, these methods have limitations in providing a comprehensive understanding phenomena related to powder flow, coagulation, and wear. Consequently, performance evaluation based on the analysis of powder flow properties has been increasingly adopted. Previously, flow properties were primarily assessed using funnel-based methods. However, these methods have limitations, as they are challenging to apply to powders smaller than a few micrometers or those with strong coagulation tendencies, and they also suffer from low reliability. To address these issues, this paper introduces a novel piece of equipment that measures flow properties using image analysis and presents various parameters for static and dynamic flow behavior based on this technique. The proposed equipment offers exceptional versatility, as it can be applied to all types of ceramic powders regardless of their size or shape. The principles and measurement methods of the equipment are demonstrated through static and dynamic image analysis of ceramic powders with varying sizes and shapes used as examples.
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