Toughness enhancement of single-crystal diamond by the homoepitaxial growth of periodic nitrogen-doped nano-multilayers

Yun, Zhao; Tu, Juping; Chen, Liangxian; Wei, Junjun; Liu, Jinlong; Li, Chengming

doi:10.1007/s12613-022-2497-1

Cited by 2 publications

(1 citation statement)

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“…Thus far, the sound absorption properties of numerous types of lattice structures have been investigated. This includes lattice structures consisting of solely trusses, [ 9 , 10 , 11 ] solely plates, [ 11 ] trusses and plates, [ 11 , 12 ] tubes, [ 13 , 14 ] tubes and plates, [ 15 , 16 , 17 ] smooth skeletal structures, [ 18 , 19 , 20 ] triply periodic minimal surface, [ 21 , 22 ] and bioinspired features. [ 23 ] Beyond the unit cell level, heterogeneities such as heterogeneously‐structured unit cells placed in parallel, [ 12 , 23 , 24 ] functionally graded arrangements, [ 25 , 26 , 27 , 28 ] and additional acoustic meta‐features [ 9 ] have also been proposed.…”

Section: Introductionmentioning

confidence: 99%

3D‐Printed Lattice Structures for Sound Absorption: Current Progress, Mechanisms and Models, Structural‐Property Relationships, and Future Outlook

Li,

Chua,

et al. 2023

Advanced Science

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The reduction of noises, achieved through absorption, is of paramount importance to the well‐being of both humans and machines. Lattice structures, defined as architectured porous solids arranged in repeating patterns, are emerging as advanced sound‐absorbing materials. Their immense design freedom allows for customizable pore morphology and interconnectivity, enabling the design of specific absorption properties. Thus far, the sound absorption performance of various types of lattice structures are studied and they demonstrated favorable properties compared to conventional materials. Herein, this review gives a thorough overview on the current research status, and characterizations for lattice structures in terms of acoustics is proposed. Till date, there are four main sound absorption mechanisms associated with lattice structures. Despite their complexity, lattice structures can be accurately modelled using acoustical impedance models that focus on critical acoustical geometries. Four defining features: morphology, relative density, cell size, and number of cells, have significant influences on the acoustical geometries and hence sound wave dissipation within the lattice. Drawing upon their structural‐property relationships, a classification of lattice structures into three distinct types in terms of acoustics is proposed. It is proposed that future attentions can be placed on new design concepts, advanced materials selections, and multifunctionalities.

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