A three-dimensional dual-mechanism model of pore stability in a sintering alumina structure

K. Darcovich, K. Shinagawa, F. Walkowiak

研究成果: Contribution to journalArticle査読

6 被引用数 (Scopus)

抄録

A three-dimensional simulation based on a cubic configuration of sintering grains was formulated to study the evolution of pore morphology. A numerical simulation treating lattice diffusion derived from a viscoplastic formulation was used as the basis for the work. The additional mechanism of surface diffusion was incorporated into the simulation. An objective in a broader context is to design nano-scale filtration media. At this size scale, tracing the evolving pore morphology with any degree of accuracy in three dimensions requires the simultaneous application of relevant sintering mechanisms. The paper details the formulation of the model and presents a quantitative comparison to some benchmark experimental data. An example result demonstrates that the coded model was able to simulate the pore morphology evolution in a plausible manner. At length scales below 10-6m, significant morphological differences are observed for simultaneous surface and lattice diffusion compared to considering only lattice diffusion.

本文言語英語
ページ(範囲)107-114
ページ数8
ジャーナルMaterials Science and Engineering A
373
1-2
DOI
出版ステータス出版済み - 5 25 2004
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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