水晶の微細構造にインスパイアされた耐傷性建築材料
Minh-Son Pham1, Chen Liu2, Iain Todd3
1Department of Materials, Imperial College London, London, UK. son.pham@imperial.ac.uk.
Nature
|January 18, 2019
まとめ
新しい建築材料は 結晶構造を模倣して 壊滅的な失敗を防ぎます このアプローチは,金属学的硬化原理を組み込むことで,工学材料の頑丈さと耐損性を高めます.
科学分野:
- 材料科学
- 機械工学
- 固体力学
背景:
- 周期的なノードストラット構造を持つ建築材料は 軽量なデザインとマイナスポアソン比率のようなユニークな特性を提供します
- 同様のユニットセルを使用する従来の建築材料は,屈服後に局所的なストレスバンドのために壊滅的な崩壊に苦しんでいます.
- この屈折後の崩壊は,脱位時に金属単結晶で観察されたストレスドロップに似ています.
研究 の 目的:
- 堅固で耐傷性のある建築材料を開発する.
- 従来の建築材料の崩壊後の限界を克服する.
- 金属の硬化原理を建築材料の設計に統合する.
主な方法:
- 粒子の境界,沈殿物,相を含む結晶物質の微細構造を模倣する.
- 結晶材料の硬化メカニズムを建築材料の設計に適用する.
- 金属工学と建築材料科学の 原則を組み合わせたものです
主要な成果:
- 建築材料のメソスケール構造は 機械的性質に不可欠です
- 開発された建築材料は,強化された強度と損傷耐性を示しています.
- このアプローチにより,特異な特性を持つ建築材料の設計が可能になります.
結論:
- 建築材料は,結晶材料の微細構造を模倣することで頑丈で耐久性があります.
- 金属学的な硬化原理を統合することで,高度な建築材料設計への道が開けます.
- この結晶に触発されたアプローチは,金属合金に対する結晶学と同じくらい重要なものです.
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