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Metals 2019, 9(3), 329; https://doi.org/10.3390/met9030329

Analysis of Powder Binder Separation through Multiscale Computed Tomography

1
Tianjin Sanying Precision Instruments Co., Ltd., Tianjin 300399, China
2
Institute for Advanced Materials and Technology, University of science and technology Beijing, Beijing 100083, China
3
School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
*
Authors to whom correspondence should be addressed.
Received: 14 February 2019 / Revised: 8 March 2019 / Accepted: 8 March 2019 / Published: 15 March 2019
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Abstract

In this study, X-ray computed tomography was used to analyze powder binder separation in TC4 green bodies. Firstly, for the scanned results of the whole green body, because of the relative low resolution (36 µm), the powder binder separation can only be analyzed by using gray value distribution. Then, local regions (areas near the gate and the central parts) were scanned by using a much higher resolution (2.3 µm). Both of the volume fraction of powder content and gray value distributions indicate that powder particles tend to accumulate in the central parts. Finally, based on the results tested by using submicron resolution (0.8 µm), the effects of the volume and morphology of the powder particles on the powder binder separation were analyzed. View Full-Text
Keywords: green body; powder binder separation; CT test; mold filling green body; powder binder separation; CT test; mold filling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Yang, S.; Xu, Q.; Liu, C.; Lu, X.; Qu, X.; Xu, Y. Analysis of Powder Binder Separation through Multiscale Computed Tomography. Metals 2019, 9, 329.

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