Journal
SCIENTIFIC REPORTS
Volume 3, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep02374
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Funding
- National Natural Science Foundation of China [51173162]
- Qianjiang Talent Foundation of Zhejiang Province [2010R10021]
- Fundamental Research Funds for the Central Universities [2013XZZX003]
- Research Fund for the Doctoral Program of Higher Education of China [20100101110049]
- Zhejiang Provincial Natural Science Foundation of China [R4110175]
- [Z12sr0042]
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Materials with both high strength and toughness are in great demand for a wide range of applications, requiring strict design of ingredients and hierarchically ordered architecture from nano- to macro-scale. Nacre achieves such a target in the long natural evolution by alternative alignment of inorganic nanoplatelets and biomacromolecules. To mimic nacre, various strategies were developed, approaching nacre-comparable performance in limited size. How to remarkably exceed nacre in both property and size is a key issue to further the advancement of composites. Here we present liquid crystal self-templating methodology to make the next generation of ultrastrong and tough nacre-mimics continuously. The hierarchically assembled composites show the highest tensile strength (652 MPa) among nacre mimics, five to eight times as high as that of nacre (80-135 MPa), and excellent ductility with toughness of 18 MJ m(-3), one to two orders of magnitude greater than that of nacre (0.1 similar to 1.8 MJ m(-3)).
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