Sea urchin tooth design: An "All-Calcite" polycrystalline reinforced fiber composite for grinding rocks

被引：112

作者：

Ma, Yurong ^{[1
]}

Cohen, Sidney R. ^{[2
]}

Addadi, Lia ^{[1
]}

Weiner, Steve ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Biol Struct, IL-76100 Rehovot, Israel

[2] Weizmann Inst Sci, Dept Chem Res Support, IL-76100 Rehovot, Israel

来源：

ADVANCED MATERIALS | 2008年 / 20卷 / 08期

关键词：

D O I：

10.1002/adma.200702842

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A convenient tooth. Here we investigate how the different kinds of calcite crystals in a sea urchin tooth (left) work together as an effective grinding tool. The polycrystalline matrix has a higher elastic modulus and hardness than the single crystals, yet both work together to produce a flat grinding surface (right).

引用

页码：1555 / +

页数：6

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