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

被引：116

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

共 39 条

[1] Mechanisms of toughening and strengthening in ceramic-based nanocomposites [J].

Awaji, H ;

Choi, SM ;

Yagi, E .

MECHANICS OF MATERIALS, 2002, 34 (07) :411-422

[2] A MODEL FOR THE ABRASIVE WEAR-RESISTANCE OF MULTIPHASE MATERIALS [J].

AXEN, N ;

JACOBSON, S .

WEAR, 1994, 174 (1-2) :187-199

[3] BIOLOGICAL-CONTROL OF CRYSTAL TEXTURE - A WIDESPREAD STRATEGY FOR ADAPTING CRYSTAL PROPERTIES TO FUNCTION [J].

BERMAN, A ;

HANSON, J ;

LEISEROWITZ, L ;

KOETZLE, TF ;

WEINER, S ;

ADDADI, L .

SCIENCE, 1993, 259 (5096) :776-779

[4] INTERCALATION OF SEA-URCHIN PROTEINS IN CALCITE - STUDY OF A CRYSTALLINE COMPOSITE-MATERIAL [J].

BERMAN, A ;

ADDADI, L ;

KVICK, A ;

LEISEROWITZ, L ;

NELSON, M ;

WEINER, S .

SCIENCE, 1990, 250 (4981) :664-667

[5] INTERACTIONS OF SEA-URCHIN SKELETON MACROMOLECULES WITH GROWING CALCITE CRYSTALS - A STUDY OF INTRACRYSTALLINE PROTEINS [J].

BERMAN, A ;

ADDADI, L ;

WEINER, S .

NATURE, 1988, 331 (6156) :546-548

[6] ROLE OF GRAIN-SIZE IN THE STRENGTH AND R-CURVE PROPERTIES OF ALUMINA [J].

CHANTIKUL, P ;

BENNISON, SJ ;

LAWN, BR .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (08) :2419-2427

[7]

Choi SM, 2005, SCI TECHNOL ADV MAT, V6, P2, DOI [10.1016/j.stam.2004.07.001, 10.1016/j.stam.2004.06.002]

[8]

DEELMAN JC, 1976, INT J EARTH SCI, V65, P1055

[9]

Durham J. W., 1966, Treatise on invertebrate paleontology. Part U. Echinodermata 3, Asterozoa-Echinozoa, V1

[10] SUBSOLIDUS PHASE RELATIONS IN THE SYSTEM CACO3-MGCO3 [J].

GOLDSMITH, JR ;

HEARD, HC .

JOURNAL OF GEOLOGY, 1961, 69 (01) :45-&

← 1 2 3 4 →