Deformation and fracture in microlaminates

Was, G. S.; Foecke, Timothy J.

doi:10.1016/s0040-6090(96)08905-5

Cited by 252 publications

(86 citation statements)

References 85 publications

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“…A decrease in the metal layer thickness results in higher strength owing to the Orowan-type dislocation strengthening effect (Embury & Hirth 1994), but can also generate brittleness and often poor fracture toughness owing to the increased constraint. This has been clearly observed when the metallic layer thickness is reduced to micrometre size-scale (Was & Foecke 1996;Bloyer et al 1998;Li & Soboyejo 2000). The key question is what will happen when the thickness of the metallic layer is reduced down to the nanoscale.…”

Section: Discussionmentioning

confidence: 99%

A novel biomimetic approach to the design of high-performance ceramic–metal composites

Launey

Munch

Alsem

et al. 2009

J. R. Soc. Interface.

249

121

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The prospect of extending natural biological design to develop new synthetic ceramicmetal composite materials is examined. Using ice-templating of ceramic suspensions and subsequent metal infiltration, we demonstrate that the concept of ordered hierarchical design can be applied to create fine-scale laminated ceramic -metal (bulk) composites that are inexpensive, lightweight and display exceptional damage-tolerance properties. Specifically, Al 2 O 3 /Al -Si laminates with ceramic contents up to approximately 40 vol% and with lamellae thicknesses down to 10 mm were processed and characterized. These structures achieve an excellent fracture toughness of 40 MPa p m at a tensile strength of approximately 300 MPa. Salient toughening mechanisms are described together with further toughening strategies.

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Section: Discussionmentioning

confidence: 99%

A novel biomimetic approach to the design of high-performance ceramic–metal composites

Launey

Munch

Alsem

et al. 2009

J. R. Soc. Interface.

249

121

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show abstract

“…The multilayer combine the properties of different materials in a single protective layer. The introduction of a number of interfaces parallel to the substrate surface can act to deflect cracks or provide barriers to dislocation motion, increasing the toughness and hardness of the coating [27,28]. For example crystalline transition metal nitride/a-CNx multilayer such as TiN/CNx, ZrN/CNx, CrN/CNx and NbN/CNx exhibit good tribological behavior and improved adhesion on the metal substrates by means of stress relaxation [29].…”

Section: Introductionmentioning

confidence: 99%

Tribocorrosion behavior and ions release of CoCrMo alloy coated with a TiAlVCN/CN multilayer in simulated body fluid plus bovine serum albumin

Alemón

Flores

Ramirez

et al. 2015

Tribology International

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“…[1][2][3][4][5][6] These composites offer an attractive combination of mechanical properties distinct from the separate constituent phases, e.g., high toughness of the metal coupled with low density, high oxidation resistance, and high strength at elevated temperature of the intermetallic.…”

Section: Introductionmentioning

confidence: 99%

Tensile and fracture properties of NiAl/Ni micro-laminated composites prepared by reaction synthesis

et al. 2006

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The mechanical properties of NiAl/Ni micro-laminated composites with highly gradient microstructure have been investigated. Two types of composites with different gradient microstructures were prepared by reaction synthesis. Intermetallics of type I and type II composites mainly consisted of Al-rich Ni 0.45 Al 0.55 with variable thickness and Ni-rich Ni 0.58 Al 0.42 with similar thickness, respectively. As intermetallic volume fraction increased, yield strength of type II followed the rule-of-mixture well, while that of type I deviated due to the composition variation of intermetallic phases. Fracture toughness of type II was higher than that of type I, and all showed K R curves with upward curvature by large-scale bridging. Even though the relative strength of constituent phases in intermetallic/metal laminates was not constant due to the gradient microstructure, the fracture mode transition showed similar behavior to that of metal/ceramic laminates.

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Deformation and fracture in microlaminates

Cited by 252 publications

References 85 publications

A novel biomimetic approach to the design of high-performance ceramic–metal composites

A novel biomimetic approach to the design of high-performance ceramic–metal composites

Tribocorrosion behavior and ions release of CoCrMo alloy coated with a TiAlVCN/CN multilayer in simulated body fluid plus bovine serum albumin

Tensile and fracture properties of NiAl/Ni micro-laminated composites prepared by reaction synthesis

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