Effects of pore size on the mechanical properties of three-dimensionally ordered macroporous nickel

Zhenyu Li; Lili Yang; Yang Li; Yongning Yang; Changhai Zhou; Yanbo Ding; Jiupeng Zhao; Yao Li

doi:10.1016/j.matdes.2012.09.009

Effects of pore size on the mechanical properties of three-dimensionally ordered macroporous nickel

Zhenyu Li
, Lili Yang
, Yang Li^*
, Yongning Yang
, Changhai Zhou
, Yanbo Ding
, Jiupeng Zhao
, Yao Li^*

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
School of Transportation Science and Engineering, Harbin Institute of Technology
School of Chemistry and Chemical Engineering, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

The mechanical properties of three-dimensionally ordered macroporous (3DOM) nickel with pore sizes between 312 and 1200. nm are explored under nanoindentation and microhardness tester. This paper demonstrates that the hardness and elastic modulus of 3DOM Ni increase as the pore size decreases. The phenomenon that " smaller is stronger" is mainly due to the combined effects of sharing the load with more and smaller pore cells, the decrease of the moment upon the small pore wall and larger surface area to volume ratio. The deformation process of 3DOM Ni is pore wall " fracture-dominated" under nanoindentation while " bending-dominated" under microhardness tester. The results demonstrate how pore size control at the microstructural scale can tailor hardness and elastic modulus and hold great potential for the design and application of new 3DOM materials and devices.

Original language	English
Pages (from-to)	52-55
Number of pages	4
Journal	Materials and Design
Volume	45
DOIs	https://doi.org/10.1016/j.matdes.2012.09.009
State	Published - Mar 2013

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title = "Effects of pore size on the mechanical properties of three-dimensionally ordered macroporous nickel",

abstract = "The mechanical properties of three-dimensionally ordered macroporous (3DOM) nickel with pore sizes between 312 and 1200. nm are explored under nanoindentation and microhardness tester. This paper demonstrates that the hardness and elastic modulus of 3DOM Ni increase as the pore size decreases. The phenomenon that {"} smaller is stronger{"} is mainly due to the combined effects of sharing the load with more and smaller pore cells, the decrease of the moment upon the small pore wall and larger surface area to volume ratio. The deformation process of 3DOM Ni is pore wall {"} fracture-dominated{"} under nanoindentation while {"} bending-dominated{"} under microhardness tester. The results demonstrate how pore size control at the microstructural scale can tailor hardness and elastic modulus and hold great potential for the design and application of new 3DOM materials and devices.",

author = "Zhenyu Li and Lili Yang and Yang Li and Yongning Yang and Changhai Zhou and Yanbo Ding and Jiupeng Zhao and Yao Li",

year = "2013",

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doi = "10.1016/j.matdes.2012.09.009",

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T1 - Effects of pore size on the mechanical properties of three-dimensionally ordered macroporous nickel

AU - Li, Zhenyu

AU - Yang, Lili

AU - Li, Yang

AU - Yang, Yongning

AU - Zhou, Changhai

AU - Ding, Yanbo

AU - Zhao, Jiupeng

AU - Li, Yao

PY - 2013/3

Y1 - 2013/3

N2 - The mechanical properties of three-dimensionally ordered macroporous (3DOM) nickel with pore sizes between 312 and 1200. nm are explored under nanoindentation and microhardness tester. This paper demonstrates that the hardness and elastic modulus of 3DOM Ni increase as the pore size decreases. The phenomenon that " smaller is stronger" is mainly due to the combined effects of sharing the load with more and smaller pore cells, the decrease of the moment upon the small pore wall and larger surface area to volume ratio. The deformation process of 3DOM Ni is pore wall " fracture-dominated" under nanoindentation while " bending-dominated" under microhardness tester. The results demonstrate how pore size control at the microstructural scale can tailor hardness and elastic modulus and hold great potential for the design and application of new 3DOM materials and devices.

AB - The mechanical properties of three-dimensionally ordered macroporous (3DOM) nickel with pore sizes between 312 and 1200. nm are explored under nanoindentation and microhardness tester. This paper demonstrates that the hardness and elastic modulus of 3DOM Ni increase as the pore size decreases. The phenomenon that " smaller is stronger" is mainly due to the combined effects of sharing the load with more and smaller pore cells, the decrease of the moment upon the small pore wall and larger surface area to volume ratio. The deformation process of 3DOM Ni is pore wall " fracture-dominated" under nanoindentation while " bending-dominated" under microhardness tester. The results demonstrate how pore size control at the microstructural scale can tailor hardness and elastic modulus and hold great potential for the design and application of new 3DOM materials and devices.

UR - https://www.scopus.com/pages/publications/84867761348

U2 - 10.1016/j.matdes.2012.09.009

DO - 10.1016/j.matdes.2012.09.009

M3 - 文章

AN - SCOPUS:84867761348

SN - 0264-1275

VL - 45

SP - 52

EP - 55

JO - Materials and Design

JF - Materials and Design

ER -

Effects of pore size on the mechanical properties of three-dimensionally ordered macroporous nickel

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