Nanoscale structural and mechanical characterization of a natural nanocomposite material: The shell of red abalone

被引：483

作者：

Li, XD

Chang, WC

Chao, YJ

Wang, RZ

Chang, M

机构：

[1] Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA

[2] Chung Yuan Christian Univ, Dept Mech Engn, Chungli 32023, Taiwan

[3] Univ British Columbia, Dept Met & Mat Engn, Vancouver, BC V6T 1Z4, Canada

来源：

NANO LETTERS | 2004年 / 4卷 / 04期

关键词：

D O I：

10.1021/nl049962k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanoscale structural and mechanical characterization of the shell of a red abalone has been carried out. Cobble-like polygonal nanograins are basic building blocks that are used to construct individual aragonite platelets into a mother-of-pearl configuration known as nacre. The nanograin-structured aragonite platelets are not brittle in nature, but somewhat ductile. The deformability of the aragonite platelets together with the crack deflection, aragonite platelet slip, and organic adhesive interlayer contribute to the nacre's fracture toughness. Cracks formed in the outer prismatic layer of the shell do not show the crack diversion mechanism.

引用

页码：613 / 617

页数：5

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