The crossed – lamellar structure of mollusk shells as biocomposite material

Magdalena Kowalewska-Groszkowska , Dominika Mierzwa-Szymkowiak , Joanna Zdunek


Composites produced in nature, such as mollusc shells, are renowned for their unique structures and exceptional properties. The crystallographic characterization of different shells as well as their physical and chemical properties have always attracted the interest of researchers. Much information is available at present, however, most of it concerns sea molluscs. We focused on the microstructures and chemical composition of the shell of land snails of the Cepaea genus. New aspects of the microstructure of shells have been shown through the use of a scanning electron microscope (SEM) equipped with an EDS X-ray detector, and X-ray diffractometry (XRD). The study shows that all the tested snail shells are characterized by a typical crossed-lamellar structure and are built of aragonite. Small differences in the chemical composition of the shells as well as differences in the size of the crystallites and different proportions of the amorphous phase were also noticed.
Author Magdalena Kowalewska-Groszkowska - Museum and Institute of Zoology, Polish Academy of Sciences
Magdalena Kowalewska-Groszkowska,,
, Dominika Mierzwa-Szymkowiak - Museum and Institute of Zoology, Polish Academy of Sciences
Dominika Mierzwa-Szymkowiak,,
, Joanna Zdunek (FMSE / DMD)
Joanna Zdunek,,
- Division of Materials Design
Journal seriesComposites, Theory and Practice, ISSN 2084-6096, e-ISSN 2299-128X, (B 11 pkt)
Issue year2018
Publication size in sheets0.5
Keywords in Polishmuszla, struktura skrzyżowanych płytek, skład chemiczny i fazowy
Keywords in Englishshell, crossed-lamellar structure, chemical composition, phase identification
Languageen angielski
Composites theory and practice 2008 - art.pdf 725.44 KB
Score (nominal)11
ScoreMinisterial score = 11.0, 11-03-2019, ArticleFromJournal
Ministerial score (2013-2016) = 11.0, 11-03-2019, ArticleFromJournal
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