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説明:

Synchrotron X-ray multiscale tomography is a 3D imaging technique that integrates microtomography and nanotomography, enabling high spatial resolution analysis across a broad field of view. This approach allows for tracking 3D microstructural changes at multiple length scales in processes such as powder compaction, sintering, and ceramic microfracture. The heterogeneity, complexity, diversity, and hierarchical nature of powder compacts give rise to various defect types that influence product quality, reliability, and lifespan. In spark plasma sintering, defect formation and elimination are influenced by applied external stress, while internal stresses generated during differential and constrained sintering also play a critical role. Furthermore, the intricate subsurface crack networks formed by Vickers indentation highlight how heterogeneous microstructures contribute to toughening mechanisms.

権利情報:

• Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  

キーワード: 焼結, 微構造, 放射光X線CT

刊行年月日: 2025-05-15

出版者: 一般社団法人 粉体粉末冶金協会

掲載誌:

• 粉体および粉末冶金 vol. 72 issue. 5 p. 121-128

研究助成金:

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.2497/jjspm.25-00014

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更新時刻: 2025-06-19 16:30:19 +0900

MDRでの公開時刻: 2025-06-19 16:21:52 +0900