Abstract
The microstructures of Atrina pectinata and freshwater mussel shells are investigated by optical microscopy and scanning electron microscopy. The mechanical properties of these shells are characterized by nanoindentation and three-point bending tests. Results show that both shells possess a prismatic microstructure mainly composed of columnar crystals and an organic matrix. The fracture toughness of the prismatic structure of Atrina pectinata and freshwater mussel are approximately 1.15 MPa·m½ and 0.87 MPa·m½, respectively, while the fracture toughness of natural calcite is approximately 0.2 MPa·m½. Calculated results from indentations agree with those obtained from the three-point bending tests. The columnar crystal material shows excellent fracture toughness due to grain refinement. In addition, the organic matrix of the prismatic layer can arrest cracks, and thereby improves the fracture toughness.
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Huang Z W, Li X D. Origin of flaw-tolerance in nacre. Scientific Reports, 2013, 3, 1–6.
Ma J F, Chen W Y, Zhao L, Zhao D H. Elastic buckling of bionic cylindrical shells based on bamboo. Journal of Bionic Engineering, 2008, 5, 231–238.
Kamat S, Su X, Ballarini R, Heuer A H. Structural basis for the fracture toughness of the shell of the conch Strombus gigas. Nature, 2000, 405, 1036–1040.
Hou D, Zhou G, Zheng M. Conch shell structure and its effect on mechanical behaviors. Biomaterials, 2004, 25, 751–756.
Liang Y, Zhao J, Wu C W. The micro/nanostructure characteristics and the mechanical properties of Hemifusus tuba conch shell. Journal of Bionic Engineering, 2010, 7, 307–313.
Lv J L, Jiang Y G, Zhang D Y, Zhao Y J, Sun X J. Characterization on the fatigue performance of a piezoelectric microvalve with a microfabricated silicon valve seat. Journal of Micromechanics and Microengineering, 2013, 24, 015013.
Kamat S, Kessler H, Ballarini R, Nassirou M, Heuer A H. Fracture mechanisms of the Strombus gigas conch shell: II-microme chanics analyses of multiple cracking and large-scale crack bridging. Acta Materialia, 2004, 52, 2395–2406.
Li X D, Chang W C, Chao Y J, Wang R Z, Chang M. Nanoscale structural and mechanical characterization of a natural nanocomposite material: The shell of red abalone. Nano Letters, 2004, 4, 613–617.
Antonio C, Elizabeth M H, Marc W. Aragonitic dendritic prismatic shell microstructure in Thracia (Bivalvia, Anomalodesmata). Invertebrate Biology, 2012, 131, 19–29.
Bedabibhas M, Kalpana S K, Dinesh R K. Experimental investigation of nanomechanics of the mineral protein interface in nacre. Mechanics Research Communications, 2008, 35, 17–23.
Jackson A P, Vincent J F V, Turner R M. The mechanical design of nacre. Proceedings of the Royal Society B-Biological Sciences. 1988, 234, 415–440.
Barthelat F, Espinosa H D. An experimental investigation of deformation and fracture of nacre-mother of pearl. Experimental Mechanics, 2007, 47, 311–324.
Bond G M, Richman R H, McNaughton W P. Mimicry of natural material designs and processes. Journal of Materials Engineering and Performance, 1995, 4, 334–345.
Currey J D, Zioupos P, Peter D, Casinos A. Mechanical properties of nacre and highly mineralized bone. Proceedings of the Royal Society B-Biological Sciences, 2001, 268, 107–111.
Hannes K, Roberto B, Robert L M, Liisa T K, Arthur H H. A biomimetic example of brittle toughening: (I) steady state multiple cracking. Computational Materials Science, 1996, 5, 157–166.
Kuhn-Spearing L T, Kessler H, Chateau E, Ballarini R, Heuer A H. Fracture mechanisms of the Strombus gigas conch shell: implications for the design of brittle laminates. Journal of Materials Science, 1996, 31, 6583–6594.
Chen L, Ballarini R, Kahn H, Heuer A H. Bioinspired micro-composite structure. Journal of Materials Research, 2007, 22, 124–131.
Tang Z, Kotov N A, Magonov S, Ozturk B. Nanostructured artificial nacre. Nature Materials, 2003, 2, 413–418.
Rubner M. Synthetic sea shell. Nature, 2003, 423, 925–926.
Tong H, Hu J M, Ma W T, Zhong G R, Yao S N, Cao N X. In situ analysis of the organic framework in the prismatic layer of mollusc shell. Biomaterials, 2002, 23, 2593–2598.
Currey J D, Taylor J D. The mechanical behaviour of some molluscan hard tissues. Journal of Zoology, 1974, 173, 395–406.
Taylor J D, Layman M. The mechanical properties of bivalve (Mollusca) shell structures. Palaeontology, 1972, 15, 73–87.
Vancolen S, Verrecchia E. Does prism width from the shell prismatic layer have a random distribution? Geo-Marine Letters, 2008, 28, 383–393.
Fu G. Calcium Carbonate Biomineralization: Characterizing the Molecular Mechanisms Protein-Mineral Interaction. PhD thesis, University of California, Santa Barbara, USA, 2005.
Feng Q, Li H, Pu G, Zhang D, Cui F, Li H. Crystallographic alignment of calcite prisms in the oblique prismatic layer of Mytilus edulis shell. Journal of Materials Science, 2000, 35, 3337–3340.
Lawn B R. Fracture of Brittle Solids, Cambridge University Press, Cambridge, UK, 1993.
Anstis G R, Chantikul P, Lawn B R, Marshall D B. A Critical evaluation of indentation techniques for measuring fracture toughness: I, Direct Crack Measurements. Journal of the American Ceramic Society, 1981, 64, 533–538.
Niihara K, Morena R, Hasselman D P H. Evaluation of KIC of brittle solids by the indentation method with low crack-to-indent ratios. Journal of Materials Science Letters, 1982, 1, 13–16.
Szutkowska M. Fracture toughness of advanced alumina ceramics and alumina matrix composites used for cutting tool edges. Journal of Achievements in Materials and Manufacturing Engineering, 2012, 54, 202–210.
Sun J, Ling M, Wang Y, Chen D, Zhang S J, Tong J, Wang S. Quasi-static and dynamic nanoindentation of some selected biomaterials. Journal of Bionic Engineering, 2014, 11, 144–150.
Naimi-Jamal M R, Kaupp G. Nutshells’ mechanical response: from nanoindentation and structure to bionics models. Journal of Materials Chemistry, 2011, 21, 8389–8400.
Oliver W C, Pharr G M. Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology. Journal of Materials Research, 2004, 19, 3–20.
Fischer-Cripps A C. A review of analysis methods for sub-micron indentation testing. Vacuum, 2000, 58, 569–585.
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Lv, J., Jiang, Y. & Zhang, D. Structural and Mechanical Characterization of Atrina Pectinata and Freshwater Mussel Shells. J Bionic Eng 12, 276–284 (2015). https://doi.org/10.1016/S1672-6529(14)60120-7
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DOI: https://doi.org/10.1016/S1672-6529(14)60120-7