Quantitative evaluation of toughening mechanisms in abalone nacre

Tensile and fracture tests for dried nacre were carried out. Dried nacre fractured in a brittle fashion, but its toughness perpendicular to the plane of the plate was 10 times greater than that of natural CaCO3. A simple model in which plates interlock was proposed based on the observations of fract...

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Veröffentlicht in:Journal of the Ceramic Society of Japan 2013/02/01, Vol.121(1410), pp.258-260
Hauptverfasser: INOUE, Ryo, KAKISAWA, Hideki, SUMITOMO, Taro, KAGAWA, Yutaka
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container_issue 1410
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container_title Journal of the Ceramic Society of Japan
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creator INOUE, Ryo
KAKISAWA, Hideki
SUMITOMO, Taro
KAGAWA, Yutaka
description Tensile and fracture tests for dried nacre were carried out. Dried nacre fractured in a brittle fashion, but its toughness perpendicular to the plane of the plate was 10 times greater than that of natural CaCO3. A simple model in which plates interlock was proposed based on the observations of fracture behavior and the fractured surface. The contribution of interlocking to toughness was estimated; it was confirmed that the interlocking of the plates is the main factor in the toughening of dried nacre.
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identifier ISSN: 1882-0743
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source J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese
subjects Calcium carbonate
Ceramics
Fracture behavior
Fracture mechanics
Fracture toughness
Haliotis
Locking
Nacre
Plates
Toughening
Toughness
title Quantitative evaluation of toughening mechanisms in abalone nacre
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