Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/27372
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Crystallographic Interdigitation in Oyster Shell Folia Enhances Material Strength
Author(s): Meng, Yuan
Fitzer, Susan C
Chung, Peter
Li, Chaoyi
Thiyagarajan, Vengatesen
Cusack, Maggie
Contact Email: susan.fitzer@stir.ac.uk
Keywords: Oysters
shell structure
mechanical strength
crystallography
Issue Date: 5-Jul-2018
Date Deposited: 13-Jun-2018
Citation: Meng Y, Fitzer SC, Chung P, Li C, Thiyagarajan V & Cusack M (2018) Crystallographic Interdigitation in Oyster Shell Folia Enhances Material Strength. Crystal Growth and Design, 18 (7), pp. 3753-3761. https://doi.org/10.1021/acs.cgd.7b01481
Abstract: Shells of oyster species belonging to the genus Crassostrea have similar shell microstructural features comprising well-ordered calcite folia. However, the mechanical strengths of folia differ dramatically between closely related species. For example, the calcareous shells of the Hong Kong oyster Crassostrea hongkongensis are stronger than those of its closest relative, the Portuguese oyster, Crassostrea angulata. Specifically, after removal of organic content, the folia of C. hongkongensis are 200% tougher and able to withstand a 100% higher crushing force than that of C. angulata. Detailed analyses of shell structural and mechanical features support the hypothesis that crystallographic interdigitations confer elevated mechanical strength in C. hongkongensis oyster shells compared to C. angulata shells. Consequently, the folia of C. hongkongensis are structurally equipped to withstand a higher external load compared to C. angulata. The observed relationships between oyster shell structure, crystallography, and mechanical properties provided an insightful context in which to consider the likely fate of these two species in future climate change scenarios. Furthermore, the interdisciplinary approach developed in this study through integrating electron backscatter diffraction (EBSD) data into finite element analysis (FEA) could be applied to other biomineral systems to investigate the relationship between crystallography and mechanical behavior.
DOI Link: 10.1021/acs.cgd.7b01481
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Crystal Growth & Design, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/pdf/10.1021/acs.cgd.7b01481

Files in This Item:
File Description SizeFormat 
Final_Folia_CGD_Yuan et al_11May_YM_Supporting Info.pdfFulltext - Accepted Version918.74 kBAdobe PDFView/Open
Yuan et al. 2018 Crystal Growth and Design.pdfFulltext - Accepted Version2.12 MBAdobe PDFView/Open



This item is protected by original copyright



Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

The metadata of the records in the Repository are available under the CC0 public domain dedication: No Rights Reserved https://creativecommons.org/publicdomain/zero/1.0/

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.