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衝撃に抵抗するナクレのような透明な材料

Z Yin¹, F Hannard¹, F Barthelat²

¹Department of Mechanical Engineering, McGill University, Montreal, Quebec H3A 2K6, Canada.

Science (New York, N.Y.)

|June 29, 2019

まとめ

研究者は"レンガとモルタル"の構造を用いて,ナクレアにインスパイアされた新しいガラスを開発しました. この革新的な素材は衝撃抵抗性と頑丈性を大幅に高め強い耐久性のあるガラスを生み出すために自然のモルスクの殻を真似ています

科学分野:

材料科学
バイオミメティック
構造工学

背景:

伝統的なガラスには優れた光学特性がありますが,脆さや低耐震性があり,その使用を制限しています.
ラミネーションやテンプリングのような既存の方法は衝撃反応を良くしますが固有の脆さには対応できません
ナチュラルナークル (真珠の母) は,ユニークな3Dの"レンガとモルタル"構造と"タブレット・スライディング・メカニズム"により,例外的な頑丈さを提供します.

研究の目的:

自然なナクレアの構造を複製する新しいバイオインスピレーションのレイミネートガラスを設計する
"タブレットスライディングメカニズム"を組み込むことでガラスの頑丈さと耐震性を高める.
要求の高い用途に適した高性能ガラス材料を作成します.

主な方法:

透明な熱プラスチックのエラストマーインターレイヤを使用した 3D "レンガとモルタル"アーキテクチャを設計しました.
自然なナクレの階層構造と"タブレットスライディングメカニズム"を模倣した.
粘り強さ,硬さ,衝撃耐性をテストした.

主要な成果:

バイオインスピレーションのガラスは"タブレットスライディングメカニズム"を成功裏に再現し,大規模な非線形変形を可能にしました.
従来のラミネートガラスとテンプレートガラスの2〜3倍の耐震性を得ています.
伝統的なガラスと比べて高い強度と硬さを維持しています.

結論:

ガラスの脆さを克服する非常に効果的なバイオミメティックなアプローチを示しています
"タブレット・スライディング・メカニズム"は,優れたタフさと衝撃耐性を達成する上で重要な要素です.
この新しい材料は,より強く安全なガラス製品を開発するための有望な経路を提供します.

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