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Structure and Mechanical Properties of a Pteropod Shell Consisting of Interlocked Helical Aragonite Nanofibers
Author(s) -
Zhang Taiji,
Ma Yurong,
Chen Kai,
Kunz Martin,
Tamura Nobumichi,
Qiang Ming,
Xu Jun,
Qi Limin
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201103407
Subject(s) - aragonite , materials science , misorientation , nanofiber , shell (structure) , microstructure , anisotropy , composite material , crystallography , nanotechnology , optics , calcium carbonate , chemistry , physics , grain boundary
Natural ultrathin flexible armor : Novel hierarchical microstructures composed of densely packed helical aragonite nanofibers were observed in an ultrathin pteropod shell by a combination of techniques. The helical nanofibers are interlocked and crystallographically aligned with a misorientation of up to 10°. These structural features may contribute to its advanced anisotropic mechanical properties.