Anisotropy of Mechanical Properties of <i>Pinctada margaritifera</i> Mollusk Shell
The mechanical properties such as compressive strength and nanohardness were investigated for <i>Pinctada margaritifera</i> mollusk shells. The compressive strength was evaluated through a uniaxial static compression test performed along the load directions parallel and perpendicular to...
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MDPI AG
2020-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/4/634 |
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| author | Martyna Strąg Łukasz Maj Magdalena Bieda Paweł Petrzak Anna Jarzębska Jürgen Gluch Emre Topal Kristina Kutukova André Clausner Wieland Heyn Katarzyna Berent Kinga Nalepka Ehrenfried Zschech Antonio G. Checa Krzysztof Sztwiertnia |
| author_facet | Martyna Strąg Łukasz Maj Magdalena Bieda Paweł Petrzak Anna Jarzębska Jürgen Gluch Emre Topal Kristina Kutukova André Clausner Wieland Heyn Katarzyna Berent Kinga Nalepka Ehrenfried Zschech Antonio G. Checa Krzysztof Sztwiertnia |
| author_sort | Martyna Strąg |
| collection | DOAJ |
| description | The mechanical properties such as compressive strength and nanohardness were investigated for <i>Pinctada margaritifera</i> mollusk shells. The compressive strength was evaluated through a uniaxial static compression test performed along the load directions parallel and perpendicular to the shell axis, respectively, while the hardness and Young modulus were measured using nanoindentation. In order to observe the crack propagation, for the first time for such material, the in-situ X-ray microscopy (nano-XCT) imaging (together with 3D reconstruction based on the acquired images) during the indentation tests was performed. The results were compared with these obtained during the micro-indentation test done with the help of conventional Vickers indenter and subsequent scanning electron microscopy observations. The results revealed that the cracks formed during the indentation start to propagate in the calcite prism until they reach a ductile organic matrix where most of them are stopped. The obtained results confirm a strong anisotropy of both crack propagation and the mechanical strength caused by the formation of the prismatic structure in the outer layer of <i>P. margaritifera</i> shell. |
| first_indexed | 2024-03-11T10:10:00Z |
| format | Article |
| id | doaj.art-902ce1a69fe247eca880cee0bc7ef96c |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T10:10:00Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-902ce1a69fe247eca880cee0bc7ef96c2023-11-16T14:34:02ZengMDPI AGNanomaterials2079-49912020-03-0110463410.3390/nano10040634Anisotropy of Mechanical Properties of <i>Pinctada margaritifera</i> Mollusk ShellMartyna Strąg0Łukasz Maj1Magdalena Bieda2Paweł Petrzak3Anna Jarzębska4Jürgen Gluch5Emre Topal6Kristina Kutukova7André Clausner8Wieland Heyn9Katarzyna Berent10Kinga Nalepka11Ehrenfried Zschech12Antonio G. Checa13Krzysztof Sztwiertnia14Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 30-059 Krakow, PolandInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 30-059 Krakow, PolandInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 30-059 Krakow, PolandInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 30-059 Krakow, PolandInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 30-059 Krakow, PolandFraunhofer IKTS, Institute for Ceramic Technologies and Systems, 01109 Dresden, GermanyFraunhofer IKTS, Institute for Ceramic Technologies and Systems, 01109 Dresden, GermanyFraunhofer IKTS, Institute for Ceramic Technologies and Systems, 01109 Dresden, GermanyFraunhofer IKTS, Institute for Ceramic Technologies and Systems, 01109 Dresden, GermanyFraunhofer IKTS, Institute for Ceramic Technologies and Systems, 01109 Dresden, GermanyAcademic Centre for Materials and Nanotechnology, AGH University of Science and Technology, 30-059 Krakow, PolandDepartment of Strength and Fatigue of Materials and Structures, AGH University of Science and Technology, 30-059 Krakow, PolandFraunhofer IKTS, Institute for Ceramic Technologies and Systems, 01109 Dresden, GermanyDepartment of Stratigraphy and Paleontology, University of Granada, 18071 Granada, SpainInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 30-059 Krakow, PolandThe mechanical properties such as compressive strength and nanohardness were investigated for <i>Pinctada margaritifera</i> mollusk shells. The compressive strength was evaluated through a uniaxial static compression test performed along the load directions parallel and perpendicular to the shell axis, respectively, while the hardness and Young modulus were measured using nanoindentation. In order to observe the crack propagation, for the first time for such material, the in-situ X-ray microscopy (nano-XCT) imaging (together with 3D reconstruction based on the acquired images) during the indentation tests was performed. The results were compared with these obtained during the micro-indentation test done with the help of conventional Vickers indenter and subsequent scanning electron microscopy observations. The results revealed that the cracks formed during the indentation start to propagate in the calcite prism until they reach a ductile organic matrix where most of them are stopped. The obtained results confirm a strong anisotropy of both crack propagation and the mechanical strength caused by the formation of the prismatic structure in the outer layer of <i>P. margaritifera</i> shell.https://www.mdpi.com/2079-4991/10/4/634mollusk shellsbivalvecalcitenano-XCTelectron microscopymechanical properties |
| spellingShingle | Martyna Strąg Łukasz Maj Magdalena Bieda Paweł Petrzak Anna Jarzębska Jürgen Gluch Emre Topal Kristina Kutukova André Clausner Wieland Heyn Katarzyna Berent Kinga Nalepka Ehrenfried Zschech Antonio G. Checa Krzysztof Sztwiertnia Anisotropy of Mechanical Properties of <i>Pinctada margaritifera</i> Mollusk Shell Nanomaterials mollusk shells bivalve calcite nano-XCT electron microscopy mechanical properties |
| title | Anisotropy of Mechanical Properties of <i>Pinctada margaritifera</i> Mollusk Shell |
| title_full | Anisotropy of Mechanical Properties of <i>Pinctada margaritifera</i> Mollusk Shell |
| title_fullStr | Anisotropy of Mechanical Properties of <i>Pinctada margaritifera</i> Mollusk Shell |
| title_full_unstemmed | Anisotropy of Mechanical Properties of <i>Pinctada margaritifera</i> Mollusk Shell |
| title_short | Anisotropy of Mechanical Properties of <i>Pinctada margaritifera</i> Mollusk Shell |
| title_sort | anisotropy of mechanical properties of i pinctada margaritifera i mollusk shell |
| topic | mollusk shells bivalve calcite nano-XCT electron microscopy mechanical properties |
| url | https://www.mdpi.com/2079-4991/10/4/634 |
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