@article{a0dacf644b47432f865f38a61960dc2c,
title = "Nanomechanical characterization of the fracture toughness of Al/SiC nanolaminates",
abstract = "The fracture toughness of Al/SiC nanolaminates with different layer thicknesses (in the range 10 to 100 nm) was measured by means of micropillar splitting and bending of a notched beam. The crack plane was perpendicular to the layers in the former while notched beams with the notch parallel and perpendicular to the layers were milled in the latter. It was found that crack propagation parallel to the layers took place along the metal–ceramic interfaces and the toughness increased with the layer thickness due to the contribution of the plastic deformation of the Al layers. Crack propagation perpendicular to the layers showed evidence of crack deflection/arrest at the interface. The toughness in this orientation increased as the layer thickness decreased due to the higher density of interfaces except for the nanolaminates with 10 nm layer thickness. In this latter case, crack propagation took place along the weak columnar grain boundaries, leading to a marked reduction in toughness.",
keywords = "Fracture toughness, Nanolaminates, Nanomechanics",
author = "Yang, {L. W.} and Mayer, {C. R.} and N. Chawla and J. LLorca and Molina-Aldaregu{\'i}a, {J. M.}",
note = "Funding Information: This investigation was supported by the European Research Council (ERC) under the European Union{\textquoteright}s Horizon 2020 research and innovation programme (Advanced Grant VIRMETAL, grant agreement No. 669141 ). Additional support is gratefully acknowledged from the U.S. National Science Foundation and the Spanish Ministry of Economy and Competitiveness under the Materials World Network Program through the project “High temperature mechanical behavior of metal/ceramic nanolaminate composites” (Dr. Lynnette Madsen, NSF-DMR-1209988 , PCIN-2013-029 and MAT2012-31889 ). Funding Information: This investigation was supported by the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Advanced Grant VIRMETAL, grant agreement No. 669141). Additional support is gratefully acknowledged from the U.S. National Science Foundation and the Spanish Ministry of Economy and Competitiveness under the Materials World Network Program through the project ?High temperature mechanical behavior of metal/ceramic nanolaminate composites? (Dr. Lynnette Madsen, NSF-DMR-1209988, PCIN-2013-029 and MAT2012-31889). Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",
year = "2020",
month = oct,
doi = "10.1016/j.eml.2020.100945",
language = "English (US)",
volume = "40",
journal = "Extreme Mechanics Letters",
issn = "2352-4316",
publisher = "Elsevier Limited",
}