Frequency-tunable toughening in a polymer-metal-ceramic stack using an interfacial molecular nanolayer
| Autor: | Michael Lane, Ganpati Ramanath, Muriel Braccini, Matthew Kwan |
|---|---|
| Přispěvatelé: | Rensselaer Polytechnic Institute (RPI), Science et Ingénierie des Matériaux et Procédés (SIMaP ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Emory University [Atlanta, GA] |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Science General Physics and Astronomy 02 engineering and technology Plasticity 010402 general chemistry 01 natural sciences Article General Biochemistry Genetics and Molecular Biology Rheology Stack (abstract data type) [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] Ceramic Composite material lcsh:Science ComputingMilieux_MISCELLANEOUS chemistry.chemical_classification Multidisciplinary Fracture mechanics [CHIM.MATE]Chemical Sciences/Material chemistry General Chemistry Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry visual_art visual_art.visual_art_medium Fracture (geology) lcsh:Q 0210 nano-technology Layer (electronics) |
| Zdroj: | Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018) Nature Communications Nature Communications, Nature Publishing Group, 2018, 9 (1) |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-018-07614-y |
| Popis: | Interfacial toughening in composite materials is reasonably well understood for static loading, but little is known for cyclic loading. Here, we demonstrate that introducing an interfacial molecular nanolayer at the metal-ceramic interface of a layered polymer-metal-ceramic stack triples the fracture energy for ~75–300 Hz loading, yielding 40% higher values than the static-loading fracture energy. We show that this unexpected frequency-dependent toughening is underpinned by nanolayer-induced interface strengthening, which facilitates load transfer to, and plasticity in, the polymer layer. Above a threshold interfacial bond strength, the toughening magnitude and frequency range are primarily controlled by the frequency- and temperature-dependent rheological properties of the polymer. These results indicate the tunability of the toughening behavior through suitable choice of interfacial molecular layers and polymers. Our findings open up possibilities for realizing novel composites with inorganic-organic interfaces, e.g., arresting crack growth or stimulating controlled fracture triggered by loads with specific frequency characteristics. The toughening of layered composite materials during cyclic loading remains poorly understood. Here, the authors introduce an interfacial nanolayer to a polymer-metal-ceramic stack to triple the fracture energy during cyclic loading via nanolayer-induced interfacial bond strengthening and load transfer to the polymer layer. |
| Databáze: | OpenAIRE |
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