Toughness in synthetic and biological multilayered systems
| Autor: | Haripin Chandra, Ranji Vaidyanathan, Hugh B. Denham, Joe Cesarano, Paul Calvert, Sridhar Kasichainula |
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| Rok vydání: | 2002 |
| Předmět: |
Ceramics
Toughness Silver Fabrication Materials science General Mathematics Shell (structure) General Physics and Astronomy chemistry.chemical_element Composite Resins Brittleness Hardness Aluminium Materials Testing Lamellar structure Composite material Porosity Epoxy Resins General Engineering Microstructure Dental Porcelain Biomechanical Phenomena chemistry Aluminum Silicates Glass Aluminum |
| Zdroj: | Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences. 360:199-209 |
| ISSN: | 1471-2962 1364-503X |
| DOI: | 10.1098/rsta.2001.0925 |
| Popis: | Toughness in hard biological tissues is associated with fibrous or lamellar structures that deflect or stop growing cracks. In some cases, such as nacreous shell, protein interlayers absorb much of the crack energy. In other tissues, such as tooth enamel, the toughness derives from the mineral microstructure, and the small amount of residual protein apparently has little effect. There have been a number of efforts to make tough synthetic materials using layered structures. In this work, freeform fabrication has been used to make layered structures with a view to introducing similar toughness into brittle materials. Results are presented for epoxy-glass composites with glass fabric interlayers, porous alumina back-filled with aluminium metal, and layered glass-ceramic/silver materials. |
| Databáze: | OpenAIRE |
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