Dependence of adhesion and friction on porosity in porous anodic alumina films

Dukhyun Choi; Sangmin Lee; Seonghan Kim; Pyungsoo Lee; Kunhong Lee; Hyunchul Park; Woonbong Hwang

doi:10.1016/j.scriptamat.2008.01.001

Dependence of adhesion and friction on porosity in porous anodic alumina films

Dukhyun Choi, Sangmin Lee, Seonghan Kim, Pyungsoo Lee, Kunhong Lee, Hyunchul Park, Woonbong Hwang

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

32 Citations (Scopus)

Abstract

We explore, using atomic force microscopy, adhesion and friction characteristics of porous anodic alumina (PAA) films as the porosity varies. Pore formation greatly reduces the adhesive force, by as much as 30 times, but the porosity of PAA films has little influence on its adhesion properties, showing good agreement with the relative contact area estimated by the Hertzian model and indentation theory. Frictional coefficients vary nonlinearly with the porosity of the PAA films due to intrinsic characteristics of the surface morphology of PAA films.

Original language	English
Pages (from-to)	870-873
Number of pages	4
Journal	Scripta Materialia
Volume	58
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2008.01.001
Publication status	Published - May 2008

Bibliographical note

Funding Information:
This research was supported by Grant No. R01-2006-000-10585-0 (2006) from the Korea Science and Engineering Foundation (KOSEF) funded by the Korea government (MOST).

Keywords

Adhesion
Atomic force microscopy
Friction
Porous material

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10.1016/j.scriptamat.2008.01.001

Cite this

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title = "Dependence of adhesion and friction on porosity in porous anodic alumina films",

abstract = "We explore, using atomic force microscopy, adhesion and friction characteristics of porous anodic alumina (PAA) films as the porosity varies. Pore formation greatly reduces the adhesive force, by as much as 30 times, but the porosity of PAA films has little influence on its adhesion properties, showing good agreement with the relative contact area estimated by the Hertzian model and indentation theory. Frictional coefficients vary nonlinearly with the porosity of the PAA films due to intrinsic characteristics of the surface morphology of PAA films.",

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author = "Dukhyun Choi and Sangmin Lee and Seonghan Kim and Pyungsoo Lee and Kunhong Lee and Hyunchul Park and Woonbong Hwang",

note = "Funding Information: This research was supported by Grant No. R01-2006-000-10585-0 (2006) from the Korea Science and Engineering Foundation (KOSEF) funded by the Korea government (MOST).",

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doi = "10.1016/j.scriptamat.2008.01.001",

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T1 - Dependence of adhesion and friction on porosity in porous anodic alumina films

AU - Choi, Dukhyun

AU - Lee, Sangmin

AU - Kim, Seonghan

AU - Lee, Pyungsoo

AU - Lee, Kunhong

AU - Park, Hyunchul

AU - Hwang, Woonbong

N1 - Funding Information: This research was supported by Grant No. R01-2006-000-10585-0 (2006) from the Korea Science and Engineering Foundation (KOSEF) funded by the Korea government (MOST).

PY - 2008/5

Y1 - 2008/5

N2 - We explore, using atomic force microscopy, adhesion and friction characteristics of porous anodic alumina (PAA) films as the porosity varies. Pore formation greatly reduces the adhesive force, by as much as 30 times, but the porosity of PAA films has little influence on its adhesion properties, showing good agreement with the relative contact area estimated by the Hertzian model and indentation theory. Frictional coefficients vary nonlinearly with the porosity of the PAA films due to intrinsic characteristics of the surface morphology of PAA films.

AB - We explore, using atomic force microscopy, adhesion and friction characteristics of porous anodic alumina (PAA) films as the porosity varies. Pore formation greatly reduces the adhesive force, by as much as 30 times, but the porosity of PAA films has little influence on its adhesion properties, showing good agreement with the relative contact area estimated by the Hertzian model and indentation theory. Frictional coefficients vary nonlinearly with the porosity of the PAA films due to intrinsic characteristics of the surface morphology of PAA films.

KW - Adhesion

KW - Atomic force microscopy

KW - Friction

KW - Porous material

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DO - 10.1016/j.scriptamat.2008.01.001

M3 - Article

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EP - 873

JO - Scripta Materialia

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Dependence of adhesion and friction on porosity in porous anodic alumina films

Abstract

Bibliographical note

Keywords

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