Multifunctional heat exchangers derived from three-dimensional micro-lattice structures

Maloney, Kevin J.; Fink, Kathryn; Schaedler, Tobias A.; Kolodziejska, Joanna A.; Jacobsen, Alan J.; Roper, Christopher S.

doi:10.1016/j.ijheatmasstransfer.2012.01.011

Cited by 155 publications

(74 citation statements)

References 26 publications

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“…For example, in the field of biomedicine, there is a strong interest in the development of engineered lattice structures capable of mimicking the mechanical behavior of bones and providing strong bonding with surrounding tissues via the bone tissue ingrowth [5,6]. Moreover, the high surface/volume ratio of lattice structures makes them especially appropriate for high-efficiency heat exchangers [7] and catalyzers [8]. The power requirements for pumping fluids and gases through the lattices are reduced as compared to traditional foams due to their periodicity and, therefore, their higher permeability.…”

Section: Introductionmentioning

confidence: 99%

The Static and Fatigue Behavior of AlSiMg Alloy Plain, Notched, and Diamond Lattice Specimens Fabricated by Laser Powder Bed Fusion

Soul

Terriault

Braïlovski

2018

JMMP

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Abstract:The fabrication of engineered lattice structures has recently gained momentum due to the development of novel additive manufacturing techniques. Interest in lattice structures resides not only in the possibility of obtaining efficient lightweight materials, but also in the functionality of pre-designed architectured structures for specific applications, such as biomimetic implants, chemical catalyzers, and heat transfer devices. The mechanical behaviour of lattice structures depends not only the composition of the base material, but also on the type and size of the unit cells, as well as on the material microstructure resulting from a specific fabrication procedure. The present work focuses on the static and fatigue behavior of diamond cell lattice structures fabricated from an AlSiMg alloy by laser powder bed fusion technology. In particular, the specimens were fabricated with three different orientations of lattice cells-[001], [011], [111]-and subjected to static tensile testing and force-controlled pull-pull fatigue testing up to 1 × 10 7 cycles. In parallel, the mechanical behavior of fully dense plain and notched tensile specimens was also studied and compared to that of their lattice counterparts. Results showed a significant effect of the cell orientation on the fatigue lives: specimens oriented at [001] were~30% more fatigue-resistant than specimens oriented at [011] and [111].

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Section: Introductionmentioning

confidence: 99%

The Static and Fatigue Behavior of AlSiMg Alloy Plain, Notched, and Diamond Lattice Specimens Fabricated by Laser Powder Bed Fusion

Soul

Terriault

Braïlovski

2018

JMMP

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“…The random pore structure of metallic foams [9] is contrasted with micro-architected materials, which have emerged as highly efficient materials with increased promise in multifunctional applications due to their controlled pore structure [10][11][12][13][14][15][16]. Three-dimensional (3D) weaving of metallic wires has recently emerged as an effective means of creating metallic microarchitected "lattice materials".…”

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confidence: 99%

Damping behavior of 3D woven metallic lattice materials

Ryan

Szyniszewski

et al. 2015

Scripta Materialia

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Cu and NiCr metallic lattice materials of two different weaving patterns and densities were manufactured with a proprietary 3-D weaving process, and this study investigated their damping behavior. The results of dynamic mechanical analysis (DMA) experiments demonstrate that the damping properties of the woven lattices are at least an order of magnitude greater than bulk samples of the same materials. The woven metallic lattices were found to have damping loss coefficients comparable to many polymers, but with maximum use temperatures far beyond that of polymers. The origin of the damping phenomenon is investigated experimentally and through the development of a damping model, and the importance of frictional and inertial damping are discussed.

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“…1 These parameters of the microlattice cellular architecture can be optimized 4 for a given application, e.g., heat exchangers, 5 sandwich panel cores, battery electrodes, catalyst supports, or acoustic, vibration, and shock energy absorbers. 6 Hollow microlattice samples of varying dimensions were used in this work, most samples having either a truss diameter D = 400 ± 50 μm and a node-to-node distance L = 4 mm, or D = 100 ± 20 μm and L = 1 mm.…”

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confidence: 99%

Microlattices as architected thin films: Analysis of mechanical properties and high strain elastic recovery

et al. 2013

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Ordered periodic microlattices with densities from 0.5 mg/cm3 to 500 mg/cm3 are fabricated by depositing various thin film materials (Au, Cu, Ni, SiO2, poly(C8H4F4)) onto sacrificial polymer lattice templates. Young's modulus and strength are measured in compression and the density scaling is determined. At low relative densities, recovery from compressive strains of 50% and higher is observed, independent of lattice material. An analytical model is shown to accurately predict the transition between recoverable “pseudo-superelastic” and irrecoverable plastic deformation for all constituent materials. These materials are of interest for energy storage applications, deployable structures, and for acoustic, shock, and vibration damping

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Multifunctional heat exchangers derived from three-dimensional micro-lattice structures

Cited by 155 publications

References 26 publications

The Static and Fatigue Behavior of AlSiMg Alloy Plain, Notched, and Diamond Lattice Specimens Fabricated by Laser Powder Bed Fusion

The Static and Fatigue Behavior of AlSiMg Alloy Plain, Notched, and Diamond Lattice Specimens Fabricated by Laser Powder Bed Fusion

Damping behavior of 3D woven metallic lattice materials

Microlattices as architected thin films: Analysis of mechanical properties and high strain elastic recovery

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